Best password manager ever

It runs smoothly, but the 'password copy' function doesn't work

This addon causes my entire browser to stop working on a fairly regular basis. Every so often, when I start up Firefox, none of my network requests are sent. All tabs just hang in a loading state, but they are not making any calls in the background.

Removing the LastPass addon and restarting the browser fixes the issue, but I then have to reinstall the addon and re-log in to Lastpass before I can access any of my credentials. This is a very laborious process to have to go through every couple of days.