does Microsoft Edge support uBlock Origin

Edge disabled MV2 extensions including uBlock Origin in early 2025, following Chrome's Manifest V3 transition.

why did Edge turn off my ad blocker

Edge adopted Google's Manifest V3 policy which ended support for extensions using the older webRequest API that uBlock Origin requires.

what to use instead of Edge for ad blocking

Firefox or Brave both maintain full uBlock Origin support. Brave has its own built-in ad blocker as an alternative.

will Edge ever bring back MV2 support

Unlikely. Microsoft has aligned with Google on MV3 and has not indicated any plan to maintain MV2 like Brave does.

which browsers still support uBlock Origin in 2025

Firefox and Brave still support the full uBlock Origin via MV2. Vivaldi and Opera also announced continued MV2 support.

← Back to dashboard

clawsmith.com/signal/microsoft-edge-kills-ublock-mv2-extensions-feb-2025

⚠ IssueUnderservedbrowser_extensionLive

Microsoft Edge Turns Off uBlock Origin and MV2 Extensions, Millions Affected

Microsoft Edge followed Chrome in disabling Manifest V2 extensions in February 2025, including uBlock Origin, affecting hundreds of millions of Edge users. The HN thread earned 787 points and 513 comments, making it one of the highest-engagement extension stories of the year. Users were furious that Microsoft, despite its enterprise-friendly positioning, chose Google's path of restriction over Firefox's path of support.

Product Idea from this Signal

A browser extension that migrates Chrome or Edge users to Firefox or Brave with their extensions, whitelists, and settings intact after MV2 enforcement

5.5k ▲

Chrome permanently killed MV2 extensions in 2026 and Edge followed in February 2025, stripping hundreds of millions of users of uBlock Origin and other content blockers with no migration path. Firefox and Brave kept full MV2 support, but switching browsers manually means losing all extensions, custom filter lists, whitelist rules, and per-site settings — so most users downgrade to the weaker MV3 blockers rather than move. This extension detects the user's installed MV2 extensions, finds equivalent or superior versions on the destination browser, migrates custom filter lists and whitelist rules automatically, and walks the user through a one-click browser switch.

BROWSERMV2MV3PRIVACYAD-BLOCKINGMIGRATIONFIREFOXBRAVECHROME

Competitive1000 leadsView Opportunity →

Score Breakdown

1,716

Social Proof 2 sources

Microsoft begins turning off uBlock Origin and other extensions in Edge

thombles · 2/28/2025

1,300 HN

uBlock Origin forcefully disabled by Chrome

doppp · 3/5/2025

416

Existing Solutions 2 competitors

Firefox~250M users

Supports full MV2 extensions including uBlock Origin

Brave~70M users

Chromium-based, maintains uBlock Origin support

Gap Assessment

UnderservedExisting solutions leave gaps

No cross-browser extension migration assistant exists to move users from Chrome/Edge to Firefox/Brave with their settings, whitelists, and extensions intact automatically.

Frequently Asked Questions

Virality Score

1,716

across 0 platforms

Details

Signalissue

Ecosystembrowser_extension

Sources2

Platforms0

Updated3h ago

Trend→ stable

Top ideas

All ideas →

0A mobile app that saves articles fully offline with a one-time purchase and no cloud subscription 0A CLI tool that benchmarks AI coding agents against a team's own real production tasks and codebase 0An MCP server that gives AI agents a production-grade browser session with built-in anti-bot bypass, CAPTCHA resolution, and stateful session recovery

Related signals

All signals →

4.1KLinkedIn secretly scans every visitor's browser for 6000+ installed extensions without disclosure 3.8KChrome Moves to Permanently Kill All Remaining MV2 Extensions in 2026 1.5KCommercial browser extensions freely copy GPL-licensed open-source extension code with no meaningful recourse for developers