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 are highly encouraged to transition to the DNR API. Documentation … Continue reading
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 early jump on MV3 signing enables you to begin testing … Continue reading
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 access to their browsers. The first building blocks of this … Continue reading
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 MV3 has been to gradually release new WebExtensions features that … Continue reading
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 feedback, we’re better equipped to quickly address critical bug fixes, … Continue reading
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 under the W3C to advance cross-browser WebExtensions (WECG). In our … Continue reading
The addons.mozilla.org (AMO) external API has offered add-on developers the ability to submit new add-on versions for signing for a number of years, in addition to being available to get data about published add-ons directly or internally inside Firefox. Current … Continue reading
It’s been a year since we last added support for new JavaScript syntax to the add-ons linter. In that time we’ve used it to validate over 150,000 submissions to AMO totalling hundreds of millions of lines of code. But it … Continue reading
Update: The policies are now live, please see the main policy for details. From time to time, the Add-ons Team makes changes to the policies in order to provide more clarity for developers, improve privacy and security for users, and … Continue reading
There are multiple ways to find great add-ons on addons.mozilla.org (AMO). You can browse the content featured on the homepage, use the top navigation to drill down into add-on types and categories, or search for specific add-ons or functionality. Now, … Continue reading
