Just switched over from Dashlane, which had more major problems with browsers - i believe that was to do with Dashlane's VPN...but that's another discussion.
Firefox's extension is working decently, but on Chrome, cannot even get my full email address in the login window before it freezes, so it quite useless for what I need it for - PASSWORD MANAGEMENT...(uppercase is warranted folks - password management is the very nature of the product).
Have seen other strings that suggest uninstall extension and re-install every hour, day, week - that's simply not acceptable. install once, then get regular updates, but no uninstall + re-installs as an ongoing task!
System and browsers:
Mac: OS X Sierra 10.12.6 (16G2136)
Chrome: 83.0.4103.97 (Official Build) (64-bit)
Firefox: 77.0.1 (64-bit)
Other extensions in Firefox and Chrome - just two (Salesforce Lighting Inspector & MeasureIt). I of course disabled both of course during testing, without effect - and i shouldn't have to disable other extensions to make another extension that should be absolutely ubiquitous on a browser - that's it's job...