browser.newtabpage.activity-stream.default.sites

What it does

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: https://firefox-admin-docs.mozilla.org/reference/policies/preferences/

What it writes

Hive

HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER

Registry key

Software\Policies\Mozilla\Firefox\Preferences

Options

Configure and deploy

Choose a state and the option values; the output below is generated from the template for exactly that.

History 93 retained releases

1. 8.120 Aug 2026
   • 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/]

2. 6.1028 Apr 2025
   • Translations changed; choose a language above to compare its wording.
3. 6.69 Jan 2025
   • Translations changed; choose a language above to compare its wording.
4. 6.526 Nov 2024
   • Translations changed; choose a language above to compare its wording.
5. 6.011 Jul 2024
   • Translations changed; choose a language above to compare its wording.
6. 4.126 Jun 2023
   • Translations changed; choose a language above to compare its wording.
7. 4.418 Oct 2022
   • Translations changed; choose a language above to compare its wording.
8. 3.102 Jun 2022
   • Translations changed; choose a language above to compare its wording.
9. 3.79 Mar 2022
   • Translations changed; choose a language above to compare its wording.
10. 3.48 Dec 2021
    • Translations changed; choose a language above to compare its wording.
11. 2.1019 Apr 2021
    • Translations changed; choose a language above to compare its wording.
12. 2.823 Feb 2021
    • Translations changed; choose a language above to compare its wording.
13. 2.322 Sep 2020
    • Moved Mozilla\Firefox\Preferences[added: (Deprecated)]
14. 2.011 Jul 2020
    • Translations changed; choose a language above to compare its wording.
15. 1.174 Jun 2020
    • Translations changed; choose a language above to compare its wording.
16. 1.127 Jan 2020
    • Added in this release.

67 later releases left it unchanged.

Template

Internal name

browser_newtabpage_activity-stream_default_sites

Namespace

Mozilla.Policies.Firefox

Template file

firefox.admx

Release

Mozilla Firefox 8.4 · file set a495190075c2a974…

<policy class="Both" displayName="$(string.browser_newtabpage_activity-stream_default_sites)" explainText="$(string.Preferences_String_Explain)" key="Software\Policies\Mozilla\Firefox\Preferences" name="browser_newtabpage_activity-stream_default_sites" presentation="$(presentation.Preferences_String)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:Preferences" />
      <supportedOn ref="Mozilla.Policies.Firefox:SUPPORTED_FF72" />
      <elements>
        <text id="Preferences_String" required="true" valueName="browser.newtabpage.activity-stream.default.sites" />
      </elements>
    </policy>

<presentation id="Preferences_String" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <textBox refId="Preferences_String">
          <label />
        </textBox>
      </presentation>

Mozilla.Policies.Firefox:category:Preferences
<category displayName="$(string.Preferences_group)" name="Preferences" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:firefox" />
    </category>
Mozilla.Policies.Firefox:category:firefox
<category displayName="$(string.firefox)" name="firefox" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies:Cat_Mozilla" />
    </category>
Mozilla.Policies.Firefox:definition:SUPPORTED_FF72
<definition displayName="$(string.SUPPORTED_FF72)" name="SUPPORTED_FF72" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Mozilla.Policies:category:Cat_Mozilla
<category displayName="$(string.mozilla)" name="Cat_Mozilla" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Mozilla.Policies.Firefox:category:Preferences
<category displayName="$(string.Preferences_group)" name="Preferences" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:firefox" />
    </category>
<strings><string id="Mozilla.Policies.Firefox:Preferences_group">Preferences (Deprecated)</string></strings>
Mozilla.Policies.Firefox:category:firefox
<category displayName="$(string.firefox)" name="firefox" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies:Cat_Mozilla" />
    </category>
<strings><string id="Mozilla.Policies.Firefox:firefox">Firefox</string></strings>
Mozilla.Policies.Firefox:definition:SUPPORTED_FF72
<definition displayName="$(string.SUPPORTED_FF72)" name="SUPPORTED_FF72" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Mozilla.Policies.Firefox:SUPPORTED_FF72">Firefox 72 or later, Firefox 68.4 ESR or later</string></strings>
Mozilla.Policies:category:Cat_Mozilla
<category displayName="$(string.mozilla)" name="Cat_Mozilla" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Mozilla.Policies:mozilla">Mozilla</string></strings>