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stablePublished 20 Aug 2026

Mozilla Firefox 8.1

5 new settings since 8.0.

CSVJSONBrowse its 412 settings Vendor download page

Wording or translations only

65 settings · compared with 8.0
  • Bookmarks (JSON)
    Computer and user · Mozilla\Firefox\Bookmarks
    • Description … no effect on Managed Bookmarks. For detailed information on the JSON, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#bookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/bookmarks/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure bookmarks, including [] to clear all bookmarks. If this policy is disabled or not configured, the individual bookmark policies are used. If this policy is enabled along with individual bookmarks, those bookmarks will not be added. This policy has no effect on Managed Bookmarks. For detailed information on the JSON, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#bookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/bookmarks/.]

  • Bookmarks (JSON on one line)
    Computer and user · Mozilla\Firefox\Bookmarks
    • Description … no effect on Managed Bookmarks. For detailed information on the JSON, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#bookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/bookmarks/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure bookmarks, including [] to clear all bookmarks. If this policy is disabled or not configured, the individual bookmark policies are used. If this policy is enabled along with individual bookmarks, those bookmarks will not be added. This policy has no effect on Managed Bookmarks. For detailed information on the JSON, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#bookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/bookmarks/.]

  • Auto Launch Protocols From Origins
    Computer and user · Mozilla\Firefox
    • Description … the user for permission. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#autolaunchprotocolsfromorigins.][added: https://firefox-admin-docs.mozilla.org/reference/policies/autolaunchprotocolsfromorigins/.]
      Whole description, marked

      If this policy is enabled, you can define a list of external protocols that can be used from listed origins without prompting the user. If this policy is disabled or not configured, any site that invokes an external protocol will ask the user for permission. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#autolaunchprotocolsfromorigins.][added: https://firefox-admin-docs.mozilla.org/reference/policies/autolaunchprotocolsfromorigins/.]

  • Auto Launch Protocols From Origins (JSON on one line)
    Computer and user · Mozilla\Firefox
    • Description … the user for permission. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#autolaunchprotocolsfromorigins.][added: https://firefox-admin-docs.mozilla.org/reference/policies/autolaunchprotocolsfromorigins/.]
      Whole description, marked

      If this policy is enabled, you can define a list of external protocols that can be used from listed origins without prompting the user. If this policy is disabled or not configured, any site that invokes an external protocol will ask the user for permission. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#autolaunchprotocolsfromorigins.][added: https://firefox-admin-docs.mozilla.org/reference/policies/autolaunchprotocolsfromorigins/.]

  • Containers
    Computer and user · Mozilla\Firefox
    • Description … built-in defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure the default containers. If this policy is disabled or not configured, the built-in defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]

  • Containers (JSON on one line)
    Computer and user · Mozilla\Firefox
    • Description … built-in defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure the default containers. If this policy is disabled or not configured, the built-in defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]

  • Disable warnings based on file extension for specific file types on domains
    Computer and user · Mozilla\Firefox
    • Description … all executable file types. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#exemptdomainfiletypepairsfromfiletypedownloadwarnings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/exemptdomainfiletypepairsfromfiletypedownloadwarnings/.]
      Whole description, marked

      If this policy is enabled, you can define a list of domains and file type extensions that will be exempt from executable warnings. If this policy is disabled or not configured, warnings are shown for all executable file types. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#exemptdomainfiletypepairsfromfiletypedownloadwarnings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/exemptdomainfiletypepairsfromfiletypedownloadwarnings/.]

  • Disable warnings based on file extension for specific file types on domains (JSON on one line)
    Computer and user · Mozilla\Firefox
    • Description … all executable file types. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#exemptdomainfiletypepairsfromfiletypedownloadwarnings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/exemptdomainfiletypepairsfromfiletypedownloadwarnings/.]
      Whole description, marked

      If this policy is enabled, you can define a list of domains and file type extensions that will be exempt from executable warnings. If this policy is disabled or not configured, warnings are shown for all executable file types. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#exemptdomainfiletypepairsfromfiletypedownloadwarnings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/exemptdomainfiletypepairsfromfiletypedownloadwarnings/.]

  • Extension Management
    Computer and user · Mozilla\Firefox\Extensions
    • Description … will not be managed. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/extensionsettings/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to describe the extension management policy. If this policy is disabled or not configured, extensions will not be managed. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/extensionsettings/.]

  • Extension Management (JSON on one line)
    Computer and user · Mozilla\Firefox\Extensions
    • Description … will not be managed. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/extensionsettings/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to describe the extension management policy. If this policy is disabled or not configured, extensions will not be managed. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings.][added: https://firefox-admin-docs.mozilla.org/reference/policies/extensionsettings/.]

  • Handlers
    Computer and user · Mozilla\Firefox
    • Description … Firefox defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#handlers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/handlers/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure default application handlers. If this policy is disabled or not configured, Firefox defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#handlers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/handlers/.]

  • Handlers (JSON on one line)
    Computer and user · Mozilla\Firefox
    • Description … Firefox defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#handlers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/handlers/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure default application handlers. If this policy is disabled or not configured, Firefox defaults are used. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#handlers.][added: https://firefox-admin-docs.mozilla.org/reference/policies/handlers/.]

  • Managed Bookmarks
    Computer and user · Mozilla\Firefox
    • Description … bookmarks are not added. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#managedbookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/managedbookmarks/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure managed bookmarks. If this policy is disabled or not configured, managed bookmarks are not added. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#managedbookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/managedbookmarks/.]

  • Managed Bookmarks (JSON on one line)
    Computer and user · Mozilla\Firefox
    • Description … bookmarks are not added. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#managedbookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/managedbookmarks/.]
      Whole description, marked

      If this policy is enabled, you can use JSON to configure managed bookmarks. If this policy is disabled or not configured, managed bookmarks are not added. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#managedbookmarks.][added: https://firefox-admin-docs.mozilla.org/reference/policies/managedbookmarks/.]

  • Preferences
    Computer and user · Mozilla\Firefox
    • Description … preferences are not modified. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences.][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/.]
      Whole description, marked

      Note: In order to use this policy, you must clear all settings in the old Preferences (Deprecated) section. If this policy is enabled, you can use JSON to configure preferences. If this policy is disabled or not configured, preferences are not modified. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences.][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/.]

  • Preferences (JSON on one line)
    Computer and user · Mozilla\Firefox
    • Description … preferences are not modified. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences.][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/.]
      Whole description, marked

      Note: In order to use this policy, you must clear all settings in the old Preferences (Deprecated) section. If this policy is enabled, you can use JSON to configure preferences. If this policy is disabled or not configured, preferences are not modified. For detailed information on creating the policy, see [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences.][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/.]

  • accessibility.force_disabled
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences.][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/.]
      Whole description, marked

      If this policy is enabled, the preference is locked to the value selected. If this policy is disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences.][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/.]

  • browser.bookmarks.autoExportHTML
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.bookmarks.file
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to the string entered. If this policy is disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.bookmarks.restore_default_bookmarks
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.cache.disk.enable
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.cache.disk.parent_directory
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to the string entered. If this policy is disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.fixup.dns_first_for_single_words
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.newtabpage.activity-stream.default.sites
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to the string entered. If this policy is disabled, it has no effect. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.places.importBookmarksHTML
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.safebrowsing.malware.enabled
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.safebrowsing.phishing.enabled
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.search.update
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.slowStartup.notificationDisabled
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

  • browser.tabs.warnOnClose
    Computer and user · Mozilla\Firefox\Preferences (Deprecated)
    • Description … preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]
      Whole description, marked

      If this policy is enabled, the preference is locked to true. If this policy is disabled, the preference is locked to false. For a description of the preference, see: [removed: https://github.com/mozilla/policy-templates/blob/master/README.md#preferences][added: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/]

Cite this release

The exact files ChangeIntel read; they never change at this address
Release
Mozilla Firefox 8.1 (stable)
Published
20 Aug 2026
Collected
19 Oct 2026 23:30 UTC
Templates
2 ADMX files, 8 ADML files in 4 languages
Package
policy_templates_v8.1.zip
File set SHA-256
ae7ad6412a9c2879d254d5e0857142c49972eb97fd1b2f5633b00681d3dca598
Snapshot
e4bd7832eaf4f2f286a6b0647bc6bd64e7c51c5fd4f33c6124fd7da87d3b3c92

Changed template files

5
FileChangeSHA-256 beforeSHA-256 after
de-DE/firefox.admlChanged83371d552f730cef888b0b88109cfd4a057a9ca01f7e30e9df012c7f9e3c7e60b2ed23283e7101fe12eab47bb8b85d1eb5adabf172cf0ae8b0a3ab39e762af42
en-US/firefox.admlChanged7a712890ae29de1b97043e5f9d7e77efddcc9dd8da581f78fc110188d98267c6a926c4423fb153802c94a8cefa4ad86b5da8feff8c08f6608a57fba88cf1e5fa
firefox.admxChanged10373df6511ca47f016d703051cfe28e9e8f55da28cc64bfa6573ca2967181e4618f03b933f2e5abee9940d8c4d0787af16518fb6d25b2b36c7de128f3b169f7
fr-FR/firefox.admlChanged535fda8061f8d45cd57cc505e2790de08956634f16d0859931dbc7292459c20098f1033513016e890c8ab3e910585f59f7dd522a5697934a6dbbd51ee31f45cd
ru-RU/firefox.admlChanged79213961d573ace3be6c2556f3e9aed7a88682c07fbcf8a61187c992ed0d6204664442baf09ab80fae0480bb51cba194999c2f355895a7e1d0f33e8b0ac901c2
ChangeIntel

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