While 90%+ of Chrome APIs are supported, some are missing or behave differently in Firefox:
Search for the preference: browser.migrate.chrome.extensions.enabled . Double-click it to set the value to . chrome extension to firefox
If you review your computer’s performance, Firefox wins hands down. While 90%+ of Chrome APIs are supported, some
Porting a Chrome extension to Firefox is no longer a heroic feat of reverse-engineering—it’s a straightforward, often trivial task thanks to WebExtensions standardization. For users, the majority of essential extensions are already available on both stores. For developers, investing a few hours to test and repackage an extension can open up an entire new user base (especially privacy-conscious users). Porting a Chrome extension to Firefox is no
The short answer is yes, often with minimal effort . But the long answer—involving browser APIs, manifest versions, and architectural differences—is where the real story lies.