January 2021
Chrome Manifest V3 extension uploads enabled
ChromeGoogle's web browser — built on Chromium and the most widely used browser worldwide. 88 stable enabled Manifest V3 extension uploads to the Web Store in January 2021 — replacing persistent background pages with service workers; mandatory Manifest V2 deprecation came years later.
What it was for
Manifest V3 changed how ad blockers, password managers, and dev tools hook into ChromeGoogle's web browser — built on Chromium and the most widely used browser worldwide.: extensions became more sandboxed and declarative. The shift sparked years of debate between Google (security, performance) and extension authors (filtering power), and other ChromiumGoogle's open-source browser project — the foundation for Chrome, Edge, and other modern browsers. browsers inherited the model.
Companies
Why it's here
MV3 redefined what browser extensions could do in the world's most-used browser.
Why it mattered
It forced every extension developer to rewrite for service workers and new permission models.
What it solved
Google argued legacy extension APIs were too permissive and hurt battery life and security.
Media
- ImageGoogle Chrome
Google, Public domain, via Wikimedia Commons
Related
- Google Chrome beta releasedSeptember 2, 2008
- Brave browser launchedJanuary 20, 2016