Microsoft Edge is moving toward Manifest V3, a browser extension framework that will gradually retire older MV2 add-ons. For many users, this means familiar tools such as uBlock Origin may stop working in their current form as the transition unfolds.
What is changing in Edge?
Microsoft has said MV2 extensions will begin turning off by default over the next few months, with full support for most users ending by late 2026. For enterprise environments, the transition is expected to finish in early 2027. The company also notes that most Edge extensions have already moved to MV3, leaving only a small number still on the older standard.
For users who depend on stronger content filtering, the new version of uBlock Origin, called uBlock Origin Lite, offers a more limited experience. Other MV3-compatible options, including AdBlock, AdBlock Plus, and AdGuard, remain available, though they work within the newer platform's tighter rules.
Alternative browsers remain an option
Those who want to keep using older ad-blocking tools can consider browsers outside the Chromium ecosystem. Firefox, powered by the Gecko engine, still supports legacy extensions like uBlock Origin. Brave and DuckDuckGo also include built-in ad-blocking features, while Opera has said it will continue supporting MV2 for now.
As browser platforms evolve, users are being pushed toward lighter, more controlled extension models that may reshape how privacy, speed, and customization work across the web in the years ahead.
