Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Auto enable extensions after silent installation of Mozilla Firefox

  • 1 reply
  • 2 have this problem
  • 69 views
  • Last reply by darvis994

darvis994
darvis994
more options

Hello,

I'm trying to customize Mozilla ESR Firefox configuration for silent deployment. I need include some language packs and implement automatically changing UI language depending on OS language.

I have copied needful .xpi languages packs to unziped_installer\core\browser\extensions\. It installs with Firefox and visible on tab "Languages" in "about:addons".

Also, I have found parameter, which can change UI language - "intl.locale.requested". Everything works fine, but I have one problem: Installed extensions is disabled after installation.

Also, environment can exist Mozilla Firefox profiles in appdata, which I should not remove.

Could you please advise me how I can enable these extensions after installation or first user runing with help config/preferences or maybe there is some other solution?

Thanks in advance.

Hello, I'm trying to customize Mozilla ESR Firefox configuration for silent deployment. I need include some language packs and implement automatically changing UI language depending on OS language. I have copied needful .xpi languages packs to unziped_installer\core\browser\extensions\. It installs with Firefox and visible on tab "Languages" in "about:addons". Also, I have found parameter, which can change UI language - "intl.locale.requested". Everything works fine, but I have one problem: Installed extensions is disabled after installation. Also, environment can exist Mozilla Firefox profiles in appdata, which I should not remove. Could you please advise me how I can enable these extensions after installation or first user runing with help config/preferences or maybe there is some other solution? Thanks in advance.

Chosen solution

I found solution: For enable extensions after installation use propertie: lockPref("extensions.autoDisableScopes", 0);

For automaticaly change UI language to OS language use: pref("intl.locale.requested", "");

(intl.locale.matchOS has been removed and "intl.locale.requested", "" means intl.locale.matchOS = true https://groups.google.com/forum/#!topic/firefox-dev/_qtfIyuXmYU)

Read this answer in context 👍 1

All Replies (1)

darvis994
darvis994 Question owner
more options

Chosen Solution

I found solution: For enable extensions after installation use propertie: lockPref("extensions.autoDisableScopes", 0);

For automaticaly change UI language to OS language use: pref("intl.locale.requested", "");

(intl.locale.matchOS has been removed and "intl.locale.requested", "" means intl.locale.matchOS = true https://groups.google.com/forum/#!topic/firefox-dev/_qtfIyuXmYU)