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Prepare your Firefox desktop extension for the upcoming Android release

Scott DeVaney
August 10, 2023

In the coming months Mozilla will launch support for an open ecosystem of extensions on Firefox for Android on addons.mozilla.org (AMO). We’ll announce a definite launch date in early September, … Read more

declarativeNetRequest available in Firefox

Rob Wu
May 17, 2023

The declarativeNetRequest (DNR) extension API is now available to all extensions starting from Firefox 113, released last week. Extensions with functionality that can be expressed in terms of declarative rules … Read more

New extensions available now on Firefox for Android Nightly

Scott DeVaney
December 15, 2022

Dec. 12, 2023 UPDATE: Please see this post for the most updated information around extensions on Firefox for Android. ************************************* As we continue to develop extensions support on Firefox for … Read more

Manifest v3 signing available November 21 on Firefox Nightly

Shane Caraveo
November 17, 2022

Starting November 21, 2022 add-on developers are welcome to upload their Firefox Manifest version 3 (MV3) compatible extensions to addons.mozilla.org (AMO) and have them signed as MV3 extensions. Getting an … Read more

Extensions button and how to handle permissions in Manifest V3

Juha-Matti Santala
November 17, 2022

Manifest V3 (MV3) is bringing new user-facing changes to Firefox, including an extensions button to manage installed and enabled browser extension permissions (origin controls), providing Firefox users control over extension … Read more

Begin your MV3 migration by implementing new features today

Shane Caraveo
October 31, 2022

Early next year, Firefox will release Mozilla’s Manifest V3 (MV3). Therefore, it’s an ideal time to consider migrating your Manifest V2 extensions. One of our goals throughout our approach to … Read more

Hello from the new developer advocate

Juha-Matti Santala
September 1, 2022

Hello extension developers, I’m Juhis, it’s a pleasure to meet you all. In the beginning of August I joined Mozilla and the Firefox add-ons team as a developer advocate. I … Read more

Manifest V3 Firefox Developer Preview — how to get involved

Shane Caraveo
June 8, 2022

While MV3 is still in development, many major features are already included in the Developer Preview, which provides an opportunity to expose functionality for testing and feedback. With strong developer … Read more

Manifest v3 in Firefox: Recap & Next Steps

Rob Wu
May 18, 2022

It’s been about a year since our last update regarding Manifest v3. A lot has changed since then, not least of which has been the formation of a community group … Read more

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