Mozilla expects to launch extensions Manifest V3 help in Firefox in late 2022

Mozilla plans to introduce help for the extensions Manifest V3 within the group’s Firefox internet browser in late 2022. Preview variations are already obtainable in improvement editions of the net browser.

Whereas Mozilla plans to introduce help for Manifest V3 in Firefox, it will not take away help for APIs which are important to privateness extensions. Content material blockers and different privateness extensions will proceed to perform in Firefox as earlier than, offered that builders proceed to help them.

Manifest V3 defines APIs and the capabilities of browser extensions. Google introduced the brand new model of the manifest in early 2019 and revealed that Chrome extensions must be up to date ultimately to stay obtainable for customers of the Chrome browser.

The preliminary model of the draft was mentioned controversially. Builders voiced concern over a few of the deliberate adjustments, as they might restrict privacy-focused extensions similar to content material blockers from working correctly. Google made some concessions to builders however continued its work on introducing the brand new capabilities and eradicating the outdated. The corporate landed Manifest V3 help in Chrome Canary 80 and in Chrome Beta 88.

Firefox extensions will not be restricted by Manifest V3

Mozilla introduced in 2019 that it could implement help for Manifest V3 in Firefox however would make changes to sure limitations. A brand new weblog put up on the Mozilla Add-ons Group weblog sheds mild on the adoption and the variations between Mozilla’s and Google’s implementation.

The choice to take away the blocking a part of the WebRequest API and to switch it with the limiting declarativeNetRequest API was on the middle of the controversy. Mozilla notes that the brand new API limits “capabilities of sure kinds of privateness extensions with out satisfactory substitute”.

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Mozilla will hold the WebRequest API in Firefox to be sure that privateness extensions are usually not restricted in offering the performance they’re designed for. The group will implement the declarativeNetRequest API for compatibility causes based on the weblog put up.

Mozilla will “proceed to work with content material blockers and different key customers of this API to establish present and future alternate options the place acceptable”.

Firefox can even help Occasion Pages in Manifest V3 and introduce help for Service Staff in future releases.

Developer Preview

Builders might activate the preview within the following method in present improvement editions of the browser:

  1. Load about:config within the internet browser’s handle bar.
  2. Verify that you’ll be cautious.
  3. Seek for extensions.manifestV3.enabled and set the desire to TRUE with a click on on the toggle.
  4. Seek for xpinstall.signatures.required and set the desire to FALSE.
  5. Restart Firefox.

Extensions might then be put in by way of about:debugging. Everlasting set up of Manifest V3 extensions is feasible in Nightly and Developer editions of the Firefox internet browser. The implementation is just not full on the time of writing.

Now You: what’s your tackle Mozilla’s resolution?