[Guide] Automatically install extensions and configure new (dispvm) hardened Firefox profiles with arkenfox user.js and policies

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86

I can't do more changes in this post, I'm doing an update here.

TLDR

  1. Use Tor Browser for anonymity and advanced fingerprinting protection. See here:
    What about privacy in non-Whonix qubes? - Qubes Documentation
  2. If both user.js and policies.json are present, user.js configurations typically take precedence. See here:
    Definitive answer to settings precedence? #1015 - Mozilla Firefox (GitHub).

Full-auto script to create a disposable custom firefox-esr based on debian-12-minimal template with Arkenfox user.js and custom Firefox policies, change it as you need:

Named disposable version:

debian-minimal-arkenfox-named-disposable.sh 

#!/bin/bash

#######################################################################
# File Name    : debian-minimal-arkenfox-named-disposable.sh
# Description  : This script creates a named disposable Firefox ESR
#                qube based on Debian minimal template with hardened
#                user.js, policies and extensions.
# Dependencies : curl
# Usage        : • Transfer this script from appvm to dom0 with:
#                [user@dom0 ~]$ qvm-run --pass-io appvm 'cat ~/debian-minimal-arkenfox-named-disposable.sh' > ~/debian-minimal-arkenfox-named-disposable.sh
#                • Make the script executable with:
#                [user@dom0 ~]$ chmod +x ~/debian-minimal-arkenfox-named-disposable.sh
#                • Run the script with:
#                [user@dom0 ~]$ bash ~/debian-minimal-arkenfox-named-disposable.sh
# Author       : Me and the bois
# License      : Free of charge, no warranty
# Last edited  : 2025-11-08
#######################################################################

# Safety check
set -eu

# Configuration
BASE_TEMPLATE="debian-12-minimal"
CUSTOM_TEMPLATE="debian-arkenfox-template"
DISP_TEMPLATE="debian-arkenfox-template-dvm"
NAMED_DISP_VM="disp-arkenfox"
NET_VM="sys-firewall"
BROWSER_PKG="firefox-esr"

# Arkenfox user.js URL (ajust as you need)
USER_JS="https://raw.githubusercontent.com/arkenfox/user.js/master/user.js"
# USER_JS="https://www.privacy-handbuch.de/download/moderat/user.js"

# Generate policies.json content (ajust as you need)
generate_policies_json() {
    cat <<'EOF'
{
  "policies":{
    "SSLVersionMin":"tls1.2",
    "EnableTrackingProtection":{
      "Value":true,
      "Locked":true,
      "Cryptomining":true,
      "Fingerprinting":true
    },
    "Cookies":{
      "AcceptThirdParty":"never",
      "Behavior":"reject-tracker-and-partition-foreign",
      "BehaviorPrivateBrowsing":"reject-tracker-and-partition-foreign",
      "Locked":false
    },
    "DisabledCiphers":{
      "TLS_RSA_WITH_3DES_EDE_CBC_SHA":true
    },
    "Bookmarks":[
      {
        "Title":"Qubes OS forum",
        "URL":"https://forum.qubes-os.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Qubes OS Documentation",
        "URL":"https://doc.qubes-os.org/en/latest/index.html",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Wired",
        "URL":"https://www.wired.com/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"EFF",
        "URL":"https://www.eff.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Internet Archive",
        "URL":"https://www.archive.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Invidious",
        "URL":"https://docs.invidious.io/instances/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Odysee",
        "URL":"https://odysee.com/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"DNSLeakTest",
        "URL":"https://dnsleaktest.com/",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Utilities"
      },
      {
        "Title":"BrowserLeaks",
        "URL":"https://browserleaks.com",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Utilities"
      },
      {
        "Title":"LibreTranslate",
        "URL":"https://libretranslate.com/",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      },
      {
        "Title":"DeepL",
        "URL":"https://www.deepl.com/en/translator",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      },
      {
        "Title":"dict.cc",
        "URL":"https://www.dict.cc",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      }
    ],
    "AppAutoUpdate":false,
    "BackgroundAppUpdate":false,
    "CaptivePortal":false,
    "DefaultDownloadDirectory":"${home}/Downloads",
    "DisableAppUpdate":true,
    "DisableDeveloperTools":false,
    "DisableEncryptedClientHello":false,
    "DisableFeedbackCommands":true,
    "DisableFirefoxAccounts":true,
    "DisableFirefoxScreenshots":false,
    "DisableFirefoxStudies":true,
    "DisableForgetButton":true,
    "DisableFormHistory":true,
    "DisableMasterPasswordCreation":true,
    "DisablePasswordReveal":true,
    "DisablePocket":true,
    "DisablePrivateBrowsing":true,
    "DisableProfileImport":false,
    "DisableProfileRefresh":true,
    "DisableSetDesktopBackground":true,
    "DisableSystemAddonUpdate":true,
    "DisableTelemetry":true,
    "DisplayBookmarksToolbar":"newtab",
    "DisplayMenuBar":"default-off",
    "DontCheckDefaultBrowser":true,
    "DownloadDirectory":"${home}/Downloads",
    "ExtensionUpdate":true,
    "NetworkPrediction":false,
    "NoDefaultBookmarks":true,
    "OfferToSaveLogins":false,
    "OverrideFirstRunPage":"",
    "OverridePostUpdatePage":"",
    "PasswordManagerEnabled":false,
    "PrintingEnabled":false,
    "PromptForDownloadLocation":false,
    "RequestedLocales":"en-US",
    "SearchSuggestEnabled":false,
    "ShowHomeButton":true,
    "SkipTermsOfUse":true,
    "TranslateEnabled":false,
    "UseSystemPrintDialog":false,
    "PDFjs":{
      "Enabled":false,
      "EnablePermissions":false
    },
    "PictureInPicture":{
      "Enabled":false,
      "Locked":false
    },
    "FirefoxSuggest":{
      "WebSuggestions":false,
      "SponsoredSuggestions":false,
      "ImproveSuggest":false,
      "Locked":false
    },
    "DNSOverHTTPS":{
      "Enabled":false,
      "Locked":true
    },
    "UserMessaging":{
      "ExtensionRecommendations":false,
      "FeatureRecommendations":false,
      "UrlbarInterventions":false,
      "SkipOnboarding":false,
      "MoreFromMozilla":false,
      "FirefoxLabs": false,
      "Locked":false
    },
    "Permissions":{
      "Location":{
        "BlockNewRequests":true
      },
      "Camera":{
        "BlockNewRequests":true
      },
      "Microphone":{
        "BlockNewRequests":true
      },
      "EncryptedMediaExtensions":{
        "Enabled":false,
        "Locked":true
      }
    },
    "ExtensionSettings":{
      "uBlock0@raymondhill.net":{
        "installation_mode":"force_installed",
        "install_url":"https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
      },
      "{73a6fe31-595d-460b-a920-fcc0f8843232}":{
        "installation_mode":"force_installed",
        "install_url":"https://addons.mozilla.org/firefox/downloads/latest/noscript/latest.xpi"
      }
    },
    "3rdparty":{
      "Extensions":{
        "uBlock0@raymondhill.net":{
          "adminSettings":{
            "advancedSettings":[
              [
                "disableWebAssembly",
                "true"
              ]
            ],
            "advancedUserEnabled":"true",
            "externalLists":[
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ],
            "importedLists":[
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ],
            "dynamicFilteringEnabled":"true",
            "dynamicFilteringString":"* google-analytics.com * block\n* googletagmanager.com * block\n* * 3p-script block*\n* * 3p-frame block",
            "popupPanelSections":"31",
            "hostnameSwitchesString":"no-large-media: behind-the-scene false\nno-csp-reports: * true",
            "userFilters":"! fonts\n!*$font,third-party\n!*$font,third-party,domain=~example.com|~example2.net\n\n! all stackoverflow annoying consent banners\n##.js-consent-banner\n\n! some annoying banners\n##.banner > [href]\n",
            "selectedFilterLists":[
              "ublock-quick-fixes",
              "user-filters",
              "ublock-filters",
              "ublock-badware",
              "ublock-privacy",
              "ublock-abuse",
              "ublock-unbreak",
              "adguard-generic",
              "adguard-mobile",
              "easylist",
              "easyprivacy",
              "urlhaus-1",
              "adguard-annoyance",
              "fanboy-annoyance",
              "ublock-annoyances",
              "plowe-0",
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ]
          }
        }
      }
    },
    "FirefoxHome":{
      "Highlights":false,
      "Pocket":false,
      "Search":false,
      "Snippets":false,
      "SponsoredPocket":false,
      "SponsoredStories":false,
      "SponsoredTopSites":false,
      "Stories":false,
      "TopSites":false,
      "Locked":true
    },
    "GenerativeAI": {
      "Enabled":false,
      "Chatbot":false,
      "LinkPreviews":false,
      "TabGroups":false,
      "Locked":false
    },
    "HardwareAcceleration":false,
    "Homepage":{
      "URL":"about:blank",
      "Locked":false,
      "StartPage":"none"
    },
    "SearchEngines":{
      "Add":[
        {
          "Name": "DuckDuckGo Lite",
          "Alias": "@duckduckgo",
          "Method": "POST",
          "URLTemplate": "https://start.duckduckgo.com/lite/?q={searchTerms}",
          "PostData": "q={searchTerms}",
          "IconURL": ""
        },
        {
          "Name":"DuckDuckGo Custom",
          "Alias":"@custom",
          "Method": "POST",
          "URLTemplate":"https://duckduckgo.com/?q={searchTerms}&kl=wt-wt&kp=-2&kg=p&k5=1&kae=d&ks=l&k1=-1",
          "PostData": "q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"SearXNG - searx.be",
          "Alias":"@searx",
          "Method":"POST",
          "URLTemplate":"https://searx.be/?q={searchTerms}",
          "PostData": "q={searchTerms}&category_general=on",
          "IconURL":""
        },
        {
          "Name":"Qwant",
          "Alias":"@qwant",
          "Method":"GET",
          "URLTemplate":"https://www.qwant.com/?q={searchTerms}",
          "IconURL":""
        },
        {
          "Name": "MetaGer",
          "Alias": "@metager",
          "Method": "GET",
          "URLTemplate": "https://metager.org/meta/meta.ger3?eingabe={searchTerms}",
          "IconURL": ""
        },
        {
          "Name": "Mojeek",
          "Alias": "@mojeek",
          "Method": "GET",
          "URLTemplate": "https://www.mojeek.com/search?q={searchTerms}",
          "IconURL": ""
        },
        {
          "Name":"Startpage",
          "Alias":"@startpage",
          "URLTemplate":"https://www.startpage.com/sp/search?query={searchTerms}",
          "Method":"GET",
          "IconURL":""
        },
        {
          "Name":"Brave Search",
          "Alias":"@brave",
          "Method":"GET",
          "URLTemplate":"https://search.brave.com/search?q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"LibreTranslate",
          "Alias":"@libre",
          "Method":"GET",
          "URLTemplate":"https://libretranslate.com/?source=de&target=en&q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"DeepL",
          "Alias":"@deepl",
          "Method":"GET",
          "URLTemplate":"https://deepl.com/en/translator#de/en/{searchTerms}",
          "IconURL":""
        },
        {
          "Name":"dict.cc",
          "Alias":"@dict",
          "Method":"GET",
          "URLTemplate":"https://www.dict.cc/?s={searchTerms}",
          "IconURL":""
        }
      ],
      "Remove":[
        "Google",
        "Bing",
        "Amazon.com",
        "eBay",
        "Ecosia",
        "Twitter",
        "Wikipedia"
      ],
      "Default":"DuckDuckGo"
    },
    "Preferences":{
      "dom.disable_window_flip":{
        "Value":true,
        "Status":"user"
      },
      "dom.disable_window_move_resize":{
        "Value":true,
        "Status":"user"
      },
      "extensions.htmlaboutaddons.recommendations.enabled":{
        "Value":false,
        "Status":"user"
      },
      "security.default_personal_cert":{
        "Value":"Ask Every Time",
        "Status":"user"
      },
      "browser.contentblocking.category":{
        "Value":"strict",
        "Status":"user"
      },
      "browser.search.update":{
        "Value":false,
        "Status":"user"
      },
      "accessibility.force_disabled":{
        "Value":1,
        "Status":"user"
      },
      "browser.tabs.warnOnClose":{
        "Value":false,
        "Status":"user"
      },
      "ui.systemUsesDarkTheme":{
        "Value":1,
        "Status":"user"
      },
      "extensions.activeThemeID":{
        "Value":"firefox-compact-dark@mozilla.org",
        "Status":"user"
      },
      "browser.theme.dark-private-windows":{
        "Value":true,
        "Status":"user"
      },
      "layout.css.light-dark.enabled":{
        "Value":true,
        "Status":"user"
      },
      "widget.non-native-theme.scrollbar.dark-themed":{
        "Value":true,
        "Status":"user"
      },
      "browser.in-content.dark-mode":{
        "Value":true,
        "Status":"user"
      },
      "widget.disable-dark-scrollbar":{
        "Value":false,
        "Status":"user"
      },
      "browser.theme.dark-toolbar-theme":{
        "Value":true,
        "Status":"user"
      },
      "browser.theme.toolbar-theme":{
        "Value":1,
        "Status":"user"
      }
    }
  }
}
EOF
}

# Step 1: Install and update the Qubes Template
echo -e "\n[1/6] Checking for Qubes template..."
if ! qvm-check "$BASE_TEMPLATE" 2>/dev/null; then
    echo "Installing $BASE_TEMPLATE..."
    sudo qubes-dom0-update qubes-template-$BASE_TEMPLATE
fi

# Ensure template is shut down before updating
qvm-shutdown --wait "$BASE_TEMPLATE" 2>/dev/null || true

# Update the template whether it was just installed or already existed
echo "Updating $BASE_TEMPLATE..."
sudo qubesctl --show-output --skip-dom0 --targets=$BASE_TEMPLATE state.sls update.qubes-vm

# Ensure Qubes base template is shut down before create
qvm-shutdown --wait "$BASE_TEMPLATE" 2>/dev/null || true

# Step 2: Create custom base template
echo -e "\n[2/6] Creating custom template by cloning..."
qvm-clone "$BASE_TEMPLATE" "$CUSTOM_TEMPLATE"
qvm-prefs "$CUSTOM_TEMPLATE" label black

# Step 3: Install dependencies
echo -e "\n[3/6] Installing dependencies..."
qvm-run -p -u root "$CUSTOM_TEMPLATE" "echo 'TERM=xterm' >> /etc/environment"
qvm-run -p -u root "$CUSTOM_TEMPLATE" "sed -i 's/^# *\(en_US.UTF-8\)/\1/' /etc/locale.gen"
qvm-run -p -u root "$CUSTOM_TEMPLATE" "locale-gen"
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    apt-get update && apt-get install -y --no-install-recommends \
    dialog \
    qubes-core-agent-networking \
    ca-certificates \
    pulseaudio-qubes \
    curl \
    thunar \
    qubes-core-agent-thunar \
    xfce4-terminal \
    qubes-core-agent-passwordless-root \
    $BROWSER_PKG
"

# Shutdown template to apply changes
qvm-shutdown --wait "$CUSTOM_TEMPLATE"

# Step 4: Configure Firefox in the custom template
echo -e "\n[4/7] Configuring Firefox..."

# Download user.js
echo "Downloading user.js..."
qvm-run -p "$CUSTOM_TEMPLATE" "curl --tlsv1.2 -x http://127.0.0.1:8082/ -L '$USER_JS' -o /tmp/user.js"

# Create directories
qvm-run -p -u root "$CUSTOM_TEMPLATE" "mkdir -p /usr/lib/firefox-esr/defaults/pref /usr/lib/firefox-esr/distribution"

# Create firefox.cfg
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    echo '// IMPORTANT: Start your code on the 2nd line' > /usr/lib/firefox-esr/firefox.cfg
    grep -E '^user_pref\(' /tmp/user.js | grep -v '^//' | sed 's/user_pref/pref/' >> /usr/lib/firefox-esr/firefox.cfg
"

# Create autoconfig.js
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    echo '// Enable autoconfig' > /usr/lib/firefox-esr/defaults/pref/autoconfig.js
    echo 'pref(\"general.config.filename\", \"firefox.cfg\");' >> /usr/lib/firefox-esr/defaults/pref/autoconfig.js
    echo 'pref(\"general.config.obscure_value\", 0);' >> /usr/lib/firefox-esr/defaults/pref/autoconfig.js
"

# Create policies.json with the full configuration
echo "Creating policies.json..."
generate_policies_json | qvm-run -p -u root "$CUSTOM_TEMPLATE" "cat > /usr/lib/firefox-esr/distribution/policies.json"

# Set permissions
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    chmod 644 /usr/lib/firefox-esr/firefox.cfg \
              /usr/lib/firefox-esr/defaults/pref/autoconfig.js \
              /usr/lib/firefox-esr/distribution/policies.json
"

# Finalize Firefox configuration
echo "Firefox configuration completed..."
qvm-run -p "$CUSTOM_TEMPLATE" "rm -f /tmp/user.js"
qvm-shutdown --wait "$CUSTOM_TEMPLATE"

# Step 5: Create DVM template based on custom template
echo -e "\n[5/7] Creating DVM template..."
qvm-create --template "$CUSTOM_TEMPLATE" --label red "$DISP_TEMPLATE"
qvm-prefs "$DISP_TEMPLATE" template_for_dispvms True

# Step 6: Create named disposable VM instance
echo -e "\n[6/7] Creating named disposable VM instance..."
qvm-create --class DispVM --template "$DISP_TEMPLATE" --label red \
    --property netvm="$NET_VM" \
    --property include_in_backups=False \
    "$NAMED_DISP_VM"
qvm-features "$NAMED_DISP_VM" appmenus-dispvm 1

# Step 7: Configure menu items
echo -e "\n[7/7] Configuring menu items..."
qvm-features "$CUSTOM_TEMPLATE" menu-items "debian-xterm.desktop xfce4-terminal.desktop"
qvm-features "$NAMED_DISP_VM" menu-items "firefox-esr.desktop thunar.desktop xfce4-terminal.desktop"

# Finalize
echo -e "\nFinish!"

debian-minimal-arkenfox-named-disposable.sh.log (17.5 KB)

Regular disposable version:

debian-minimal-arkenfox-regular-disposable.sh 

#!/bin/bash

#######################################################################
# File Name    : debian-minimal-arkenfox-regular-disposable.sh
# Description  : This script creates a regular disposable Firefox ESR
#                qube based on Debian minimal template with hardened
#                user.js, policies and extensions.
# Dependencies : curl
# Usage        : • Transfer this script from appvm to dom0 with:
#                [user@dom0 ~]$ qvm-run --pass-io appvm 'cat ~/debian-minimal-arkenfox-regular-disposable.sh' > ~/debian-minimal-arkenfox-regular-disposable.sh
#                • Make the script executable with:
#                [user@dom0 ~]$ chmod +x ~/debian-minimal-arkenfox-regular-disposable.sh
#                • Run the script with:
#                [user@dom0 ~]$ bash ~/debian-minimal-arkenfox-regular-disposable.sh
# Author       : Me and the bois
# License      : Free of charge, no warranty
# Last edited  : 2025-11-08
#######################################################################

# Safety check
set -eu

# Configuration
BASE_TEMPLATE="debian-12-minimal"
CUSTOM_TEMPLATE="debian-arkenfox-template"
DVM_TEMPLATE="debian-arkenfox-dvm"
NET_VM="sys-firewall"
BROWSER_PKG="firefox-esr"

# Arkenfox user.js URL (ajust as you need)
USER_JS="https://raw.githubusercontent.com/arkenfox/user.js/master/user.js"
# USER_JS="https://www.privacy-handbuch.de/download/moderat/user.js"

# Generate policies.json content (ajust as you need)
generate_policies_json() {
    cat <<'EOF'
{
  "policies":{
    "SSLVersionMin":"tls1.2",
    "EnableTrackingProtection":{
      "Value":true,
      "Locked":true,
      "Cryptomining":true,
      "Fingerprinting":true
    },
    "Cookies":{
      "AcceptThirdParty":"never",
      "Behavior":"reject-tracker-and-partition-foreign",
      "BehaviorPrivateBrowsing":"reject-tracker-and-partition-foreign",
      "Locked":false
    },
    "DisabledCiphers":{
      "TLS_RSA_WITH_3DES_EDE_CBC_SHA":true
    },
    "Bookmarks":[
      {
        "Title":"Qubes OS forum",
        "URL":"https://forum.qubes-os.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Qubes OS Documentation",
        "URL":"https://doc.qubes-os.org/en/latest/index.html",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Wired",
        "URL":"https://www.wired.com/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"EFF",
        "URL":"https://www.eff.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Internet Archive",
        "URL":"https://www.archive.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Invidious",
        "URL":"https://docs.invidious.io/instances/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Odysee",
        "URL":"https://odysee.com/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"DNSLeakTest",
        "URL":"https://dnsleaktest.com/",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Utilities"
      },
      {
        "Title":"BrowserLeaks",
        "URL":"https://browserleaks.com",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Utilities"
      },
      {
        "Title":"LibreTranslate",
        "URL":"https://libretranslate.com/",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      },
      {
        "Title":"DeepL",
        "URL":"https://www.deepl.com/en/translator",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      },
      {
        "Title":"dict.cc",
        "URL":"https://www.dict.cc",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      }
    ],
    "AppAutoUpdate":false,
    "BackgroundAppUpdate":false,
    "CaptivePortal":false,
    "DefaultDownloadDirectory":"${home}/Downloads",
    "DisableAppUpdate":true,
    "DisableDeveloperTools":false,
    "DisableEncryptedClientHello":false,
    "DisableFeedbackCommands":true,
    "DisableFirefoxAccounts":true,
    "DisableFirefoxScreenshots":false,
    "DisableFirefoxStudies":true,
    "DisableForgetButton":true,
    "DisableFormHistory":true,
    "DisableMasterPasswordCreation":true,
    "DisablePasswordReveal":true,
    "DisablePocket":true,
    "DisablePrivateBrowsing":true,
    "DisableProfileImport":false,
    "DisableProfileRefresh":true,
    "DisableSetDesktopBackground":true,
    "DisableSystemAddonUpdate":true,
    "DisableTelemetry":true,
    "DisplayBookmarksToolbar":"newtab",
    "DisplayMenuBar":"default-off",
    "DontCheckDefaultBrowser":true,
    "DownloadDirectory":"${home}/Downloads",
    "ExtensionUpdate":true,
    "NetworkPrediction":false,
    "NoDefaultBookmarks":true,
    "OfferToSaveLogins":false,
    "OverrideFirstRunPage":"",
    "OverridePostUpdatePage":"",
    "PasswordManagerEnabled":false,
    "PrintingEnabled":false,
    "PromptForDownloadLocation":false,
    "RequestedLocales":"en-US",
    "SearchSuggestEnabled":false,
    "ShowHomeButton":true,
    "SkipTermsOfUse":true,
    "TranslateEnabled":false,
    "UseSystemPrintDialog":false,
    "PDFjs":{
      "Enabled":false,
      "EnablePermissions":false
    },
    "PictureInPicture":{
      "Enabled":false,
      "Locked":false
    },
    "FirefoxSuggest":{
      "WebSuggestions":false,
      "SponsoredSuggestions":false,
      "ImproveSuggest":false,
      "Locked":false
    },
    "DNSOverHTTPS":{
      "Enabled":false,
      "Locked":true
    },
    "UserMessaging":{
      "ExtensionRecommendations":false,
      "FeatureRecommendations":false,
      "UrlbarInterventions":false,
      "SkipOnboarding":false,
      "MoreFromMozilla":false,
      "FirefoxLabs": false,
      "Locked":false
    },
    "Permissions":{
      "Location":{
        "BlockNewRequests":true
      },
      "Camera":{
        "BlockNewRequests":true
      },
      "Microphone":{
        "BlockNewRequests":true
      },
      "EncryptedMediaExtensions":{
        "Enabled":false,
        "Locked":true
      }
    },
    "ExtensionSettings":{
      "uBlock0@raymondhill.net":{
        "installation_mode":"force_installed",
        "install_url":"https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
      },
      "{73a6fe31-595d-460b-a920-fcc0f8843232}":{
        "installation_mode":"force_installed",
        "install_url":"https://addons.mozilla.org/firefox/downloads/latest/noscript/latest.xpi"
      }
    },
    "3rdparty":{
      "Extensions":{
        "uBlock0@raymondhill.net":{
          "adminSettings":{
            "advancedSettings":[
              [
                "disableWebAssembly",
                "true"
              ]
            ],
            "advancedUserEnabled":"true",
            "externalLists":[
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ],
            "importedLists":[
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ],
            "dynamicFilteringEnabled":"true",
            "dynamicFilteringString":"* google-analytics.com * block\n* googletagmanager.com * block\n* * 3p-script block*\n* * 3p-frame block",
            "popupPanelSections":"31",
            "hostnameSwitchesString":"no-large-media: behind-the-scene false\nno-csp-reports: * true",
            "userFilters":"! fonts\n!*$font,third-party\n!*$font,third-party,domain=~example.com|~example2.net\n\n! all stackoverflow annoying consent banners\n##.js-consent-banner\n\n! some annoying banners\n##.banner > [href]\n",
            "selectedFilterLists":[
              "ublock-quick-fixes",
              "user-filters",
              "ublock-filters",
              "ublock-badware",
              "ublock-privacy",
              "ublock-abuse",
              "ublock-unbreak",
              "adguard-generic",
              "adguard-mobile",
              "easylist",
              "easyprivacy",
              "urlhaus-1",
              "adguard-annoyance",
              "fanboy-annoyance",
              "ublock-annoyances",
              "plowe-0",
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ]
          }
        }
      }
    },
    "FirefoxHome":{
      "Highlights":false,
      "Pocket":false,
      "Search":false,
      "Snippets":false,
      "SponsoredPocket":false,
      "SponsoredStories":false,
      "SponsoredTopSites":false,
      "Stories":false,
      "TopSites":false,
      "Locked":true
    },
    "GenerativeAI": {
      "Enabled":false,
      "Chatbot":false,
      "LinkPreviews":false,
      "TabGroups":false,
      "Locked":false
    },
    "HardwareAcceleration":false,
    "Homepage":{
      "URL":"about:blank",
      "Locked":false,
      "StartPage":"none"
    },
    "SearchEngines":{
      "Add":[
        {
          "Name": "DuckDuckGo Lite",
          "Alias": "@duckduckgo",
          "Method": "POST",
          "URLTemplate": "https://start.duckduckgo.com/lite/?q={searchTerms}",
          "PostData": "q={searchTerms}",
          "IconURL": ""
        },
        {
          "Name":"DuckDuckGo Custom",
          "Alias":"@custom",
          "Method": "POST",
          "URLTemplate":"https://duckduckgo.com/?q={searchTerms}&kl=wt-wt&kp=-2&kg=p&k5=1&kae=d&ks=l&k1=-1",
          "PostData": "q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"SearXNG - searx.be",
          "Alias":"@searx",
          "Method":"POST",
          "URLTemplate":"https://searx.be/?q={searchTerms}",
          "PostData": "q={searchTerms}&category_general=on",
          "IconURL":""
        },
        {
          "Name":"Qwant",
          "Alias":"@qwant",
          "Method":"GET",
          "URLTemplate":"https://www.qwant.com/?q={searchTerms}",
          "IconURL":""
        },
        {
          "Name": "MetaGer",
          "Alias": "@metager",
          "Method": "GET",
          "URLTemplate": "https://metager.org/meta/meta.ger3?eingabe={searchTerms}",
          "IconURL": ""
        },
        {
          "Name": "Mojeek",
          "Alias": "@mojeek",
          "Method": "GET",
          "URLTemplate": "https://www.mojeek.com/search?q={searchTerms}",
          "IconURL": ""
        },
        {
          "Name":"Startpage",
          "Alias":"@startpage",
          "URLTemplate":"https://www.startpage.com/sp/search?query={searchTerms}",
          "Method":"GET",
          "IconURL":""
        },
        {
          "Name":"Brave Search",
          "Alias":"@brave",
          "Method":"GET",
          "URLTemplate":"https://search.brave.com/search?q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"LibreTranslate",
          "Alias":"@libre",
          "Method":"GET",
          "URLTemplate":"https://libretranslate.com/?source=de&target=en&q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"DeepL",
          "Alias":"@deepl",
          "Method":"GET",
          "URLTemplate":"https://deepl.com/en/translator#de/en/{searchTerms}",
          "IconURL":""
        },
        {
          "Name":"dict.cc",
          "Alias":"@dict",
          "Method":"GET",
          "URLTemplate":"https://www.dict.cc/?s={searchTerms}",
          "IconURL":""
        }
      ],
      "Remove":[
        "Google",
        "Bing",
        "Amazon.com",
        "eBay",
        "Ecosia",
        "Twitter",
        "Wikipedia"
      ],
      "Default":"DuckDuckGo"
    },
    "Preferences":{
      "dom.disable_window_flip":{
        "Value":true,
        "Status":"user"
      },
      "dom.disable_window_move_resize":{
        "Value":true,
        "Status":"user"
      },
      "extensions.htmlaboutaddons.recommendations.enabled":{
        "Value":false,
        "Status":"user"
      },
      "security.default_personal_cert":{
        "Value":"Ask Every Time",
        "Status":"user"
      },
      "browser.contentblocking.category":{
        "Value":"strict",
        "Status":"user"
      },
      "browser.search.update":{
        "Value":false,
        "Status":"user"
      },
      "accessibility.force_disabled":{
        "Value":1,
        "Status":"user"
      },
      "browser.tabs.warnOnClose":{
        "Value":false,
        "Status":"user"
      },
      "ui.systemUsesDarkTheme":{
        "Value":1,
        "Status":"user"
      },
      "extensions.activeThemeID":{
        "Value":"firefox-compact-dark@mozilla.org",
        "Status":"user"
      },
      "browser.theme.dark-private-windows":{
        "Value":true,
        "Status":"user"
      },
      "layout.css.light-dark.enabled":{
        "Value":true,
        "Status":"user"
      },
      "widget.non-native-theme.scrollbar.dark-themed":{
        "Value":true,
        "Status":"user"
      },
      "browser.in-content.dark-mode":{
        "Value":true,
        "Status":"user"
      },
      "widget.disable-dark-scrollbar":{
        "Value":false,
        "Status":"user"
      },
      "browser.theme.dark-toolbar-theme":{
        "Value":true,
        "Status":"user"
      },
      "browser.theme.toolbar-theme":{
        "Value":1,
        "Status":"user"
      }
    }
  }
}
EOF
}

# Step 1: Install and update the Qubes Template
echo -e "\n[1/7] Checking for Qubes template..."
if ! qvm-check "$BASE_TEMPLATE" 2>/dev/null; then
    echo "Installing $BASE_TEMPLATE..."
    sudo qubes-dom0-update qubes-template-$BASE_TEMPLATE
fi

# Ensure template is shut down before updating
qvm-shutdown --wait "$BASE_TEMPLATE" 2>/dev/null || true

# Update the template whether it was just installed or already existed
echo "Updating $BASE_TEMPLATE..."
sudo qubesctl --show-output --skip-dom0 --targets=$BASE_TEMPLATE state.sls update.qubes-vm

# Ensure Qubes base template is shut down before create
qvm-shutdown --wait "$BASE_TEMPLATE" 2>/dev/null || true

# Step 2: Create custom base template
echo -e "\n[2/7] Creating custom template by cloning..."
qvm-clone "$BASE_TEMPLATE" "$CUSTOM_TEMPLATE"
qvm-prefs "$CUSTOM_TEMPLATE" label black

# Step 3: Install template dependencies
echo -e "\n[3/7] Installing template dependencies..."
qvm-run -p -u root "$CUSTOM_TEMPLATE" "echo 'TERM=xterm' << /etc/environment"
qvm-run -p -u root "$CUSTOM_TEMPLATE" "sed -i 's/^# *\(en_US.UTF-8\)/\1/' /etc/locale.gen"
qvm-run -p -u root "$CUSTOM_TEMPLATE" "locale-gen en_US.UTF-8"
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    apt-get update && apt-get install -y --no-install-recommends \
    dialog \
    qubes-core-agent-networking \
    ca-certificates \
    pulseaudio-qubes \
    curl \
    thunar \
    qubes-core-agent-thunar \
    xfce4-terminal \
    qubes-core-agent-passwordless-root \
    $BROWSER_PKG
"

# Shutdown template to apply changes
qvm-shutdown --wait "$CUSTOM_TEMPLATE"

# Step 4: Configure Firefox in the custom template
echo -e "\n[4/7] Configuring Firefox..."

# Download user.js
echo "Downloading user.js..."
qvm-run -p "$CUSTOM_TEMPLATE" "curl --tlsv1.2 -x http://127.0.0.1:8082/ -L '$USER_JS' -o /tmp/user.js"

# Create directories
qvm-run -p -u root "$CUSTOM_TEMPLATE" "mkdir -p /usr/lib/firefox-esr/defaults/pref /usr/lib/firefox-esr/distribution"

# Create firefox.cfg
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    echo '// IMPORTANT: Start your code on the 2nd line' < /usr/lib/firefox-esr/firefox.cfg
    grep -E '^user_pref\(' /tmp/user.js | grep -v '^//' | sed 's/user_pref/pref/' << /usr/lib/firefox-esr/firefox.cfg
"

# Create autoconfig.js
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    echo '// Enable autoconfig' < /usr/lib/firefox-esr/defaults/pref/autoconfig.js
    echo 'pref(\"general.config.filename\", \"firefox.cfg\");' << /usr/lib/firefox-esr/defaults/pref/autoconfig.js
    echo 'pref(\"general.config.obscure_value\", 0);' << /usr/lib/firefox-esr/defaults/pref/autoconfig.js
"

# Create policies.json with the full configuration
echo "Creating policies.json..."
generate_policies_json | qvm-run -p -u root "$CUSTOM_TEMPLATE" "cat > /usr/lib/firefox-esr/distribution/policies.json"

# Set permissions
qvm-run -p -u root "$CUSTOM_TEMPLATE" "
    chmod 644 /usr/lib/firefox-esr/firefox.cfg \
              /usr/lib/firefox-esr/defaults/pref/autoconfig.js \
              /usr/lib/firefox-esr/distribution/policies.json
"

# Finalize Firefox configuration
echo "Firefox configuration completed..."
qvm-run -p "$CUSTOM_TEMPLATE" "rm -f /tmp/user.js"
qvm-shutdown --wait "$CUSTOM_TEMPLATE"

# Step 5: Create DVM template based on custom template
echo -e "\n[5/7] Creating DVM template..."
qvm-create --template "$CUSTOM_TEMPLATE" --label red \
    --property netvm="$NET_VM" \
    --property include_in_backups=False \
    "$DVM_TEMPLATE"
qvm-prefs "$DVM_TEMPLATE" template_for_dispvms True

# Step 6: Create regular disposable VM instance
echo -e "\n[6/7] Creating regular disposable VM instance..."
qvm-features "$DVM_TEMPLATE" appmenus-dispvm 1

# Step 7: Configure menu items
echo -e "\n[7/7] Configuring menu items..."
qvm-features "$CUSTOM_TEMPLATE" menu-items "debian-xterm.desktop xfce4-terminal.desktop"
qvm-features "$DVM_TEMPLATE" menu-items "firefox-esr.desktop thunar.desktop xfce4-terminal.desktop"

# Finalize
echo -e "\nFinish!"

debian-minimal-arkenfox-regular-disposable.sh.log (17.4 KB)


Policies features

  • Dark theme
  • Bookmarks
  • Some STIG v6 used

policies.json 

{
  "policies":{
    "SSLVersionMin":"tls1.2",
    "EnableTrackingProtection":{
      "Value":true,
      "Locked":true,
      "Cryptomining":true,
      "Fingerprinting":true
    },
    "Cookies":{
      "AcceptThirdParty":"never",
      "Behavior":"reject-tracker-and-partition-foreign",
      "BehaviorPrivateBrowsing":"reject-tracker-and-partition-foreign",
      "Locked":false
    },
    "DisabledCiphers":{
      "TLS_RSA_WITH_3DES_EDE_CBC_SHA":true
    },
    "Bookmarks":[
      {
        "Title":"Qubes OS forum",
        "URL":"https://forum.qubes-os.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Qubes OS Documentation",
        "URL":"https://doc.qubes-os.org/en/latest/index.html",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Wired",
        "URL":"https://www.wired.com/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"EFF",
        "URL":"https://www.eff.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Internet Archive",
        "URL":"https://www.archive.org/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Invidious",
        "URL":"https://docs.invidious.io/instances/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"Odysee",
        "URL":"https://odysee.com/",
        "Favicon":"",
        "Placement":"toolbar"
      },
      {
        "Title":"DNSLeakTest",
        "URL":"https://dnsleaktest.com/",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Utilities"
      },
      {
        "Title":"BrowserLeaks",
        "URL":"https://browserleaks.com",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Utilities"
      },
      {
        "Title":"LibreTranslate",
        "URL":"https://libretranslate.com/",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      },
      {
        "Title":"DeepL",
        "URL":"https://www.deepl.com/en/translator",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      },
      {
        "Title":"dict.cc",
        "URL":"https://www.dict.cc",
        "Favicon":"",
        "Placement":"toolbar",
        "Folder":"Translators"
      }
    ],
    "AppAutoUpdate":false,
    "BackgroundAppUpdate":false,
    "CaptivePortal":false,
    "DefaultDownloadDirectory":"${home}/Downloads",
    "DisableAppUpdate":true,
    "DisableDeveloperTools":false,
    "DisableEncryptedClientHello":false,
    "DisableFeedbackCommands":true,
    "DisableFirefoxAccounts":true,
    "DisableFirefoxScreenshots":false,
    "DisableFirefoxStudies":true,
    "DisableForgetButton":true,
    "DisableFormHistory":true,
    "DisableMasterPasswordCreation":true,
    "DisablePasswordReveal":true,
    "DisablePocket":true,
    "DisablePrivateBrowsing":true,
    "DisableProfileImport":false,
    "DisableProfileRefresh":true,
    "DisableSetDesktopBackground":true,
    "DisableSystemAddonUpdate":true,
    "DisableTelemetry":true,
    "DisplayBookmarksToolbar":"newtab",
    "DisplayMenuBar":"default-off",
    "DontCheckDefaultBrowser":true,
    "DownloadDirectory":"${home}/Downloads",
    "ExtensionUpdate":true,
    "NetworkPrediction":false,
    "NoDefaultBookmarks":true,
    "OfferToSaveLogins":false,
    "OverrideFirstRunPage":"",
    "OverridePostUpdatePage":"",
    "PasswordManagerEnabled":false,
    "PrintingEnabled":false,
    "PromptForDownloadLocation":false,
    "RequestedLocales":"en-US",
    "SearchSuggestEnabled":false,
    "ShowHomeButton":true,
    "SkipTermsOfUse":true,
    "TranslateEnabled":false,
    "UseSystemPrintDialog":false,
    "PDFjs":{
      "Enabled":false,
      "EnablePermissions":false
    },
    "PictureInPicture":{
      "Enabled":false,
      "Locked":false
    },
    "FirefoxSuggest":{
      "WebSuggestions":false,
      "SponsoredSuggestions":false,
      "ImproveSuggest":false,
      "Locked":false
    },
    "DNSOverHTTPS":{
      "Enabled":false,
      "Locked":true
    },
    "UserMessaging":{
      "ExtensionRecommendations":false,
      "FeatureRecommendations":false,
      "UrlbarInterventions":false,
      "SkipOnboarding":false,
      "MoreFromMozilla":false,
      "FirefoxLabs": false,
      "Locked":false
    },
    "Permissions":{
      "Location":{
        "BlockNewRequests":true
      },
      "Camera":{
        "BlockNewRequests":true
      },
      "Microphone":{
        "BlockNewRequests":true
      },
      "EncryptedMediaExtensions":{
        "Enabled":false,
        "Locked":true
      }
    },
    "ExtensionSettings":{
      "uBlock0@raymondhill.net":{
        "installation_mode":"force_installed",
        "install_url":"https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
      },
      "{73a6fe31-595d-460b-a920-fcc0f8843232}":{
        "installation_mode":"force_installed",
        "install_url":"https://addons.mozilla.org/firefox/downloads/latest/noscript/latest.xpi"
      }
    },
    "3rdparty":{
      "Extensions":{
        "uBlock0@raymondhill.net":{
          "adminSettings":{
            "advancedSettings":[
              [
                "disableWebAssembly",
                "true"
              ]
            ],
            "advancedUserEnabled":"true",
            "externalLists":[
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ],
            "importedLists":[
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ],
            "dynamicFilteringEnabled":"true",
            "dynamicFilteringString":"* google-analytics.com * block\n* googletagmanager.com * block\n* * 3p-script block*\n* * 3p-frame block",
            "popupPanelSections":"31",
            "hostnameSwitchesString":"no-large-media: behind-the-scene false\nno-csp-reports: * true",
            "userFilters":"! fonts\n!*$font,third-party\n!*$font,third-party,domain=~example.com|~example2.net\n\n! all stackoverflow annoying consent banners\n##.js-consent-banner\n\n! some annoying banners\n##.banner > [href]\n",
            "selectedFilterLists":[
              "ublock-quick-fixes",
              "user-filters",
              "ublock-filters",
              "ublock-badware",
              "ublock-privacy",
              "ublock-abuse",
              "ublock-unbreak",
              "adguard-generic",
              "adguard-mobile",
              "easylist",
              "easyprivacy",
              "urlhaus-1",
              "adguard-annoyance",
              "fanboy-annoyance",
              "ublock-annoyances",
              "plowe-0",
              "https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_17_TrackParam/filter.txt",
              "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt"
            ]
          }
        }
      }
    },
    "FirefoxHome":{
      "Highlights":false,
      "Pocket":false,
      "Search":false,
      "Snippets":false,
      "SponsoredPocket":false,
      "SponsoredStories":false,
      "SponsoredTopSites":false,
      "Stories":false,
      "TopSites":false,
      "Locked":true
    },
    "GenerativeAI": {
      "Enabled":false,
      "Chatbot":false,
      "LinkPreviews":false,
      "TabGroups":false,
      "Locked":false
    },
    "HardwareAcceleration":false,
    "Homepage":{
      "URL":"about:blank",
      "Locked":false,
      "StartPage":"none"
    },
    "SearchEngines":{
      "Add":[
        {
          "Name": "DuckDuckGo Lite",
          "Alias": "@duckduckgo",
          "Method": "POST",
          "URLTemplate": "https://start.duckduckgo.com/lite/?q={searchTerms}",
          "PostData": "q={searchTerms}",
          "IconURL": ""
        },
        {
          "Name":"DuckDuckGo Custom",
          "Alias":"@custom",
          "Method": "POST",
          "URLTemplate":"https://duckduckgo.com/?q={searchTerms}&kl=wt-wt&kp=-2&kg=p&k5=1&kae=d&ks=l&k1=-1",
          "PostData": "q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"SearXNG - searx.be",
          "Alias":"@searx",
          "Method":"POST",
          "URLTemplate":"https://searx.be/?q={searchTerms}",
          "PostData": "q={searchTerms}&category_general=on",
          "IconURL":""
        },
        {
          "Name":"Qwant",
          "Alias":"@qwant",
          "Method":"GET",
          "URLTemplate":"https://www.qwant.com/?q={searchTerms}",
          "IconURL":""
        },
        {
          "Name": "MetaGer",
          "Alias": "@metager",
          "Method": "GET",
          "URLTemplate": "https://metager.org/meta/meta.ger3?eingabe={searchTerms}",
          "IconURL": ""
        },
        {
          "Name": "Mojeek",
          "Alias": "@mojeek",
          "Method": "GET",
          "URLTemplate": "https://www.mojeek.com/search?q={searchTerms}",
          "IconURL": ""
        },
        {
          "Name":"Startpage",
          "Alias":"@startpage",
          "URLTemplate":"https://www.startpage.com/sp/search?query={searchTerms}",
          "Method":"GET",
          "IconURL":""
        },
        {
          "Name":"Brave Search",
          "Alias":"@brave",
          "Method":"GET",
          "URLTemplate":"https://search.brave.com/search?q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"LibreTranslate",
          "Alias":"@libre",
          "Method":"GET",
          "URLTemplate":"https://libretranslate.com/?source=de&target=en&q={searchTerms}",
          "IconURL":""
        },
        {
          "Name":"DeepL",
          "Alias":"@deepl",
          "Method":"GET",
          "URLTemplate":"https://deepl.com/en/translator#de/en/{searchTerms}",
          "IconURL":""
        },
        {
          "Name":"dict.cc",
          "Alias":"@dict",
          "Method":"GET",
          "URLTemplate":"https://www.dict.cc/?s={searchTerms}",
          "IconURL":""
        }
      ],
      "Remove":[
        "Google",
        "Bing",
        "Amazon.com",
        "eBay",
        "Ecosia",
        "Twitter",
        "Wikipedia"
      ],
      "Default":"DuckDuckGo"
    },
    "Preferences":{
      "dom.disable_window_flip":{
        "Value":true,
        "Status":"user"
      },
      "dom.disable_window_move_resize":{
        "Value":true,
        "Status":"user"
      },
      "extensions.htmlaboutaddons.recommendations.enabled":{
        "Value":false,
        "Status":"user"
      },
      "security.default_personal_cert":{
        "Value":"Ask Every Time",
        "Status":"user"
      },
      "browser.contentblocking.category":{
        "Value":"strict",
        "Status":"user"
      },
      "browser.search.update":{
        "Value":false,
        "Status":"user"
      },
      "accessibility.force_disabled":{
        "Value":1,
        "Status":"user"
      },
      "browser.tabs.warnOnClose":{
        "Value":false,
        "Status":"user"
      },
      "ui.systemUsesDarkTheme":{
        "Value":1,
        "Status":"user"
      },
      "extensions.activeThemeID":{
        "Value":"firefox-compact-dark@mozilla.org",
        "Status":"user"
      },
      "browser.theme.dark-private-windows":{
        "Value":true,
        "Status":"user"
      },
      "layout.css.light-dark.enabled":{
        "Value":true,
        "Status":"user"
      },
      "widget.non-native-theme.scrollbar.dark-themed":{
        "Value":true,
        "Status":"user"
      },
      "browser.in-content.dark-mode":{
        "Value":true,
        "Status":"user"
      },
      "widget.disable-dark-scrollbar":{
        "Value":false,
        "Status":"user"
      },
      "browser.theme.dark-toolbar-theme":{
        "Value":true,
        "Status":"user"
      },
      "browser.theme.toolbar-theme":{
        "Value":1,
        "Status":"user"
      }
    }
  }
}

Web Browser References

Mozilla Firefox Documentation

Mozilla Firefox Topics

Security and Privacy Topics

Qubes Forum Discussion

About plugins, add-ons, or extensions

Others

Web Browser Privacy Tools

Web Browser Privacy Comparison

Other Browsers

Browser Fingerprinting Test

Browser Adblock Test

IP and DNS Leak Test

Useful list of “about” pages

  • about:policies
  • about:support
  • about:config
  • about:preferences#search
  • about:networking
  • about:logging
  • about:about
  • about:robots

Rendering issue fixed using html encoding, duh !!!
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