I love 1Password, but I absolutely hate how intrusive and "dumb" their add-on is. You can't use both password managers, Firefox's built-in system and 1Password, at the same time because most of the time, their buttons overlap and it just causes chaos. But some passwords are only stored in Firefox and not in 1Password, so it's frustrating. And what's worse: the 1Password icon sometimes just decides to place itself ON TOP of "confirm" buttons when they are right next to the password entry prompt. Bad user experience. I'm disabling the add-on until this is improved.