I’m slowly piece mealing my way to Waterfox this weekend. One issue I’ve had is getting KeepassXC working.
I suspect this is more of a flatpak thing than a Waterfox thing. I’m not familiar with flatpak enough to know where I need to go to get it to work. If you have suggestions, let me know.
Right now I’m copying and pasting.
Ever since I mastered how KeePassXC’s autotype works, I ditched all browser integration completely and have just used Alt+V (my custom remapping) to enter in all creds. It does take a bit longer versus prepopulating the credential fields, but this is especially useful for my work PC, which doesn’t (easily) allow my preferred browser.