Updated August 24, 2020

What add-ons are supported on the new Firefox for Android?

Currently, only a limited number of extensions in our Recommended program are supported on the new Firefox for Android (codename: Fenix). These extensions can be found and installed from the Add-ons Manager. See this article for more information.

Will more add-ons be supported in the future?

We wanted to ensure that the first add-ons supported in the new Firefox for Android provide an exceptional, secure mobile experience to our users. To this end, we have prioritized Recommended Extensions that cover common mobile use cases and that are optimized for different screen sizes. For these reasons, it’s possible that not all the add-ons you have previously installed in Firefox for Android will be supported in the near future.

Will add-ons not part of the Recommended Extensions program ever be supported on the new Firefox for Android?

We would like to expand our support to other add-ons on the release channel. We’re currently evaluating how we can enable general add-on support in a secure way without creating compatibility issues. We’ll post future updates to the Add-ons Blog.

Can I run an arbitrary extension on a pre-release build of Firefox for Android?

We’re working on building a pref for Nightly to allow persistent loading of an arbitrary extension. Once we have more details, we’ll post updates to the Add-ons Blog.

Can I install extensions from addons.mozilla.org to Firefox for Android?

In the near term you will need to install extensions from the Add-ons Manager on the new Firefox for Android.

As part of our evaluation for long-term general extension support on the new Firefox for Android release channel, we are thinking about how we can support users installing extensions directly from addons.mozilla.org. We’ll post future updates to the Add-ons Blog.

What happens to add-ons during the migration?

Any extensions that are supported on the new Firefox for Android that you had previously installed will be migrated when you upgrade. All other add-ons will be disabled for now.

What is GeckoView?

GeckoView is Mozilla’s mobile browser engine. It takes Gecko, the engine that powers the desktop version of Firefox, and packages it as a reusable Android library. Rebuilding our Firefox for Android browser with GeckoView means we can leverage our Firefox expertise in creating safe and robust online experiences for mobile.