Nope, no special API what so ever. In fact there's even a Firefox add-on that makes it work[0], Google Meet just doesn't target more than Chromium with this fea

Nope, no special API what so ever. In fact there's even a Firefox add-on that makes it work[0], Google Meet just doesn't target more than Chromium with this feature. If you try using it, they'll redirect you here[1], and tell you to: > Check if your browser supports WebGL 2.0 at webglreport.com and verify that “Major Performance Caveat” is marked as “No”. ...but clicking on that site from Firefox shows WebGL 2.0 support and "Major Performance Cavet" is indeed marked as "no". That being said, simply changing the user agent to Chrome also doesn't work. So in conclusion, I end up using Chromium a few hours per week purely for Google Meet's blurry backgrounds, and I use Firefox for everything else. [0] https://addons.mozilla.org/en-US/firefox/addon/mercator-studio/ https://addons.mozilla.org/en-US/firefox/addon/mercator-stud... [1] https://support.google.com/meet/answer/10058482?hl=en&expand_all_zippies=true#requirements&zippy=%2Crequirements-for-change-background-on-desktop https://support.google.com/meet/answer/10058482?hl=en&expand...