Mozilla: Firefox and Manifest v3 (UPDATED)
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Download Firefox Browser: All Version Links and Details
This reference page contains all the links to Firefox browser downloads, including stable, beta, and developer editions.
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Manifest v3 signing available November 21 on Firefox Nightly | Mozilla Add-ons Community Blog
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 ...
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Unified Extensions Button and how to handle permissions in Manifest V3 | Mozilla Add-ons Community Blog
Manifest V3 (MV3) is bringing new user-facing changes to Firefox, including the Unified 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 button were added to Nightly in Firefox 107 and will become available with the general release of MV3 in Firefox 109.
UPDATE
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Mozilla to begin signing Mv3 extensions for Firefox • The Register
Mozilla plans to add support for Manifest v3 browser extensions to its online store – addons.mozilla.org – so developers can have them cryptographically signed for distribution.
Manifest v3 (Mv3) refers to a set of APIs and capabilities that are intended to become the new standard for browser extensions. It's a software architecture revision initially proposed by Google for Chromium-based browsers and subsequently endorsed by Mozilla for Firefox (Gecko-based) and by Apple for Safari (WebKit-based).