Extensions in Firefox 63
Firefox 63 is rolling into Beta and it’s absolutely loaded with new features for extensions. There are some important new API, some major enhancements to existing API, and a large … Read more
Articles in “developers”
Timeline for disabling legacy add-ons on addons.mozilla.org
Mozilla will stop supporting Firefox Extended Support Release (ESR) 52, the final release that is compatible with legacy add-ons, on September 5, 2018. As no supported versions of Firefox will … Read more
New backend for storage.local API
To help improve Firefox performance, the backend for the storage.local API is migrating from JSON to IndexedDB. These changes will soon be enabled on Firefox Nightly and will stabilize when … Read more
The New Thunderbird Add-ons Site is Now Live
As we announced last week, SeaMonkey and Thunderbird add-ons will now reside on https://addons.thunderbird.net. Add-ons for Firefox and Firefox for Android will remain on https://addons.mozilla.org (AMO). We wanted to let you … Read more
Upcoming changes for themes
Theming capabilities on addons.mozilla.org (AMO) will undergo significant changes in the coming weeks. We will be switching to a new theme technology that will give designers more flexibility to create … Read more
New Site for Thunderbird and SeaMonkey Add-ons
When Firefox Quantum (version 57) launched in November 2017, it exclusively supported add-ons built using WebExtensions APIs. addons.mozilla.org (AMO) has followed a parallel development path to Firefox and will soon … Read more
Extensions in Firefox 62
Last week Firefox 62 moved into the Beta channel. This version has fewer additions and changes to the WebExtensions API than the last several releases. Part of that is due … Read more
Larger image support on addons.mozilla.org
Last week, we pushed an update that enables add-on developers to use larger image sizes on their add-on listings. We hadn’t updated our size limits for many years, so the … Read more
Add-ons at the San Francisco All Hands Meeting
Last week, more than 1,200 Mozillians from around the globe converged on San Francisco, California, for Mozilla’s biannual All Hands meeting to celebrate recent successes, learn more about products from … Read more