Syncs with mobile app even works in Kindle

FF 101.0 (64-bit) on Linux. Works as advertised. Not as seamless as Chrome based browsers but is extremely useful nevertheless. Thank you so much dev!

Fonctionne très bien avec Firefox ESR 91.5
Works very well with Firefox ESR 91.5

IT WORKS! It's not an add-on fault! With Firefox v92 addon again functional!

Idea: Fullscreen button for resizing windows when we open your tool outside Firefox.

The extension is great! I would like to see the same extension, but for Google Photos, to download photos to PC and vice versa