The idea is really good, and it’s clear that a lot of effort went into developing this browser extension for Mozilla. However, it still needs some work. For me, the password simply doesn’t work - it won’t accept either my own password or a generated one. Maybe it has something to do with the encryption, but I’m not sure since I’m not a programmer. The project itself is really promising. I’d definitely buy a paid Pro version, but only once the password issue is fixed.
P.S. I installed the extension on an Android smartphone (Unihertz Jelly Star) running Android 13, with Mozilla Firefox version 154.0.