Mozilla has announced that starting November 3rd, 2025, all new Firefox extensions must declare their personal data collection practices in their manifest.json file, ensuring transparency for users during installation. Extensions must comply with these requirements to be submitted for signing on addons.mozilla.org, and full adoption of this framework will be required by mid-2026.

The reviews for the "Return YouTube Dislike" extension have turned largely negative, with users expressing frustration over recent changes that include ad popups and a paywall for features that were previously free. Many reviewers have uninstalled the extension, citing it as no longer functional or worth the cost, while a few defend it against the criticisms.