Why aren’t my add-ons working on some websites?

Firefox Firefox Last updated: 07/09/2023 16% of users voted this helpful

Certain Firefox users may come across a desktop notification indicating that their add-ons have been disabled for particular websites. In Firefox versions 113, 114 and ESR, we have introduced a system add-on developed by Mozilla that disables extensions on specific websites for various reasons, including security concerns.

Our team is working continuously to develop this functionality and to provide users the ability to manage these restrictions for each individual add-on in the future.

How can I re-enable the add-ons that have been disabled?

We understand that installing add-ons is a user choice and, as with your security, we also take this matter very seriously. If you are aware of the associated risk and still wish to re-enable the add-ons that have been disabled for a website, you can do it from the configuration editor:

Warning: Changing advanced preferences can affect Firefox's stability and security. This is recommended for advanced users only.

  1. Type about:config in the address bar and press EnterReturn.
    A warning page may appear. Click Accept the Risk and Continue to go to the about:config page.
  2. Type extensions.webextensions.addons-restricted-domains@mozilla.com.disabled in the Search bar.
  3. In the type of pref section, select Boolean.
  4. Click the + sign next to the pref to create it.
  5. Set the value of the pref to True.
  6. Restart Firefox.

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