Removing Support for Unpacked Extensions
With the release of Firefox 62 (currently scheduled for August 21, 2018) Mozilla will discontinue support for unpacked sideloaded extensions. You will no longer be able to load an extension via the...
View ArticleTimeline 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 be...
View ArticleUpcoming 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....
View ArticleMozilla’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, allowing extension...
View ArticleTest 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 content scripts used in...
View ArticleWhat to expect for the upcoming deprecation of FTP in Firefox
The Firefox platform development team recently announced plans to first disable, and then remove the implementation for built-in FTP from the browser. FTP is a protocol to transfer files from one host...
View ArticleExtensions in Firefox 82
Before we get to the Firefox 82 updates, I want to let you know that Philipp has passed the baton for these blog posts over to me. I plan to stick to the same format you know and hopefully love, but...
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Extensions in Firefox 83
In addition to our brief update on extensions in Firefox 83, this post contains information about changes to the Firefox release calendar and a feature preview for Firefox 84. Thanks to a contribution...
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Extensions in Firefox 84
Here are our highlights of what’s coming up in the Firefox 84 release: You can now zoom extension panels, popups, and sidebars using Ctrl+scroll wheel (Cmd+scroll wheel on macOS). Under certain...
View ArticleExtensions in Firefox 85
Before we get into the updates coming to Firefox 85, I want to highlight two changes that we uplifted to Firefox 84, now on release: Expose HTTPS-Only preference in privacy.network. Firefox now has a...
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