The best one right now.

Both the tool as well as the plugin works OOTB with Firefox 64 (Linux Mint/Ubuntu Bionic). Good work, I like it.

Works well in FF and it is good alternative for internal FF keystore crash (covered by automatic backup for keepass database).

it works on linux, no special character rendering issue nor dpi scaling issue like keepass mono

EDIT: This issue has been fixed. Props to an active development team.

An issue has been submitted on Github. Props to an active team who bothers to read bug reports.

After updating KeePassXC to 2.3.4, the extension works only if programs are opened in this specific order:
-Make sure everything is closed (browser and anything KeePassXC related)
-Open Firefox
-Then open KeePassXC

When the extension works it works wonderfully, but field detection does fail on some login pages such as the Google account one where you type in a username, then click next to type in the password.

fait parfaitement sont travail , très sécurisant et ne bug pas.et aujourd'hui toujours valable aucun problème a ce jour

Works perfectly, great to have it working consistently in both Windows and Linux and Chrome and Firefox. Really convenient.

Por el momento perfecta para integrar KeePassXC en Plasma :)

Works perfectly on linux.