Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Поиск в поддержке

Избегайте мошенников, выдающих себя за службу поддержки. Мы никогда не попросим вас позвонить, отправить текстовое сообщение или поделиться личной информацией. Сообщайте о подозрительной активности, используя функцию «Пожаловаться».

Подробнее
Решён

Windows Extension Management policy - unexpected behaviour

Firefox Enterprise Расширения
Adam ответил 1 неделю назад
Adam
Adam

Hi

We are managing Firefox settings using Intune and successfully imported the Mozilla/Firefox ADMX files. A few settings are working as expected on a test device, though we're encountering issues with the Extension Management policy.

We followed this documentation to set up the extension management json: https://firefox-admin-docs.mozilla.org/reference/policies/extensionsettings/. I can see the policy is loaded into Firefox, though I am unable to add uBlock Origin, which should be allowed. All extensions are blocked, and the custom error message does not appear either, but instead "Download failed. Please check your connection."

I've tried a few variations with mixed success, but I haven't been able to get "allowed" extensions to work. Force installed extensions seem to work just fine.

Here's a minimal policies.json that demonstrates the issue:

{ 

   "*": {
       "blocked_install_message": "Custom error message.",
       "installation_mode": "blocked"
   },
   "uBlock0@raymondhill.net": {
       "installation_mode": "allowed"
   }

}

Is there something I'm missing? The test device is running Firefox 156.0.1 64-bit, firefox.admx 8.3, mozilla.admx 4.8. Any help or suggestions would be greatly appreciated! Thanks.

Hi We are managing Firefox settings using Intune and successfully imported the Mozilla/Firefox ADMX files. A few settings are working as expected on a test device, though we're encountering issues with the Extension Management policy. We followed this documentation to set up the extension management json: https://firefox-admin-docs.mozilla.org/reference/policies/extensionsettings/. I can see the policy is loaded into Firefox, though I am unable to add uBlock Origin, which should be allowed. All extensions are blocked, and the custom error message does not appear either, but instead "Download failed. Please check your connection." I've tried a few variations with mixed success, but I haven't been able to get "allowed" extensions to work. Force installed extensions seem to work just fine. Here's a minimal policies.json that demonstrates the issue: { "*": { "blocked_install_message": "Custom error message.", "installation_mode": "blocked" }, "uBlock0@raymondhill.net": { "installation_mode": "allowed" } } Is there something I'm missing? The test device is running Firefox 156.0.1 64-bit, firefox.admx 8.3, mozilla.admx 4.8. Any help or suggestions would be greatly appreciated! Thanks.
Приложенные скриншоты

Все ответы (2)

Mike Kaply
Mike Kaply
  • Модератор
Работает в Mozilla

Выбранное решение

Where are you installing uBlock origin from?

I just added your ExtensionSettings and was able to install it from here:

https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/

What is the exact error?

Adam
Adam Задавший вопрос

Mike Kaply said
Where are you installing uBlock origin from? I just added your ExtensionSettings and was able to install it from here: https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/ What is the exact error?

Thanks Mike for looking into this. I was installing from that URL as well, though since it worked for you I reinstalled Firefox and ran a refresh, and since then I can install the addon. I'm guessing I broke something along the way when testing.

I have noticed that some extensions are blocked with the "<Extension> is blocked by your organization." message, which is great, and some still throw the "Download failed. Please check your connection." message. This is not a big deal for us, though would you happen to know if there's a way to consistently get that org message? I can reproduce this issue with these extensions for example:

https://addons.mozilla.org/en-US/firefox/addon/websites-notes/ --> This one shows our custom message. https://addons.mozilla.org/en-US/firefox/addon/besttimetracker/ --> This one shows the download failed message.

Hopefully not just another me issue!

Edit: After resetting cache and doing another refresh, everything is working completely fine.

Изменено Adam

Задать вопрос

Для ответа на сообщения вы должны войти в свою учётную запись. Пожалуйста, задайте новый вопрос, если у вас ещё нет учётной записи.