Test the new Content Security Policy for Content Scripts
As part of our efforts to make add-ons safer for users, and to support evolving manifest v3 features, we are making changes to apply the Content Security Policy (CSP) to … Read more
Articles in “webextensions”
Extensions in Firefox 71
Firefox 71 is a light release in terms of extension changes. I’d like to tell you about a few interesting improvements nevertheless. Thanks to Nils Maier, there have been various … Read more
Upcoming changes to extension sideloading
Sideloading is a method of installing an extension in Firefox by adding an extension file to a special location using an executable application installer. This installs the extension in all … Read more
Firefox Preview/GeckoView Add-ons Support
Back in June, Mozilla announced Firefox Preview, an early version of the new browser for Android that is built on top of Firefox’s own mobile browser engine, GeckoView. We’ve gotten … Read more
Extensions in Firefox 70
Welcome to another round of new additions and changes to extensions, this time in Firefox 70. We have a new API, some improvements on existing APIs, and some great additions … Read more
Mozilla’s Manifest v3 FAQ
What is Manifest v3? Chrome versions the APIs they provide to extensions, and the current format is version 2. The Firefox WebExtensions API is nearly 100% compatible with version 2, … Read more
Extensions in Firefox 69
In our last post for Firefox 68, we’ve introduced a great number of new features. In contrast, Firefox 69 only has a few new additions. Still, we are proud to … Read more
Upcoming deprecations in Firefox 70
Several planned code deprecations for Firefox 70, currently available on the Nightly pre-release channel, may impact extension and theme developers. Firefox 70 will be released on October 22, 2019. Aliased … Read more
Extensions in Firefox 68
In Firefox 68, we are introducing a new API and some enhancements to webRequest and private browsing. We’ve also fixed a few issues in order to improve compatibility and resolve … Read more