Firefox has confirmed via Bluesky that it will continue supporting uBlock Origin, positioning it as the last major browser to do so. Microsoft Edge is following Chrome's lead in migrating to Manifest V3, which strips ad-blocking extensions of the APIs needed for full functionality, forcing users onto the weaker uBlock Origin Lite or built-in ad blockers. Neither Safari nor DuckDuckGo support uBlock Origin either, leaving Firefox as the sole non-Chromium holdout without compromises for ad-blocking purists.
Questions this post answers
Will Microsoft Edge still support uBlock Origin after moving to Manifest V3?
No, Microsoft Edge is phasing out uBlock Origin and other Manifest V2 ad-blocking extensions as it migrates to Manifest V3, which removes the APIs needed to properly identify and block ads. Users on Edge will have to switch to uBlock Origin Lite, a reduced-feature version with weaker ad-blocking, or rely on Edge's built-in ad-blocking feature instead. Developers tracking browser extension platform shifts can follow Manifest V3 rollout news on daily.dev.
Which browsers still fully support the original uBlock Origin extension?
Firefox is the only major browser still fully supporting uBlock Origin without compromises, having confirmed via a Bluesky post that its support isn't going anywhere. Safari and DuckDuckGo, the other major non-Chromium browsers, do not support uBlock Origin either, and Chromium-based browsers like Edge, Opera, Brave, Vivaldi, and Samsung Browser are moving to Manifest V3, which limits ad-blocker capabilities. Anyone choosing a browser for ad-blocking needs can compare these tradeoffs via daily.dev.
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