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
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
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
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
Firefox 60 is now in the Release channel, which means that Firefox 61 has moved from Nightly to the Beta channel. As usual, Mozilla engineers and volunteer contributors have been … Read more
We plan on switching completely to JSON update manifests on Firefox and AMO. If you self-distribute your add-on please read ahead for details. AMO handles automatic updates for all add-ons … Read more
Many people read this blog because they’ve written extensions for Firefox in the past. Others, though, know some HTML, CSS, and JavaScript and have been thinking about writing their first … Read more
The Firefox add-ons platform provides developers with a great level of freedom to create amazing features that help make users’ lives easier. We’ve made some significant changes to add-ons over … Read more
addons.mozilla.org (AMO) has supported a way for developers to upload beta versions of their add-ons. This allowed power users to test upcoming features and fixes before they are published to … Read more