The 1Password extension for Firefox has been not great for awhile. Sometimes you click the 1Pass button and the master password box might pop open. Sometimes it's a white window where you have to click a blue "Open 1Password" button, which will then have the master password box pop open. Sometimes nothing happens and I have to open the desktop app directly. It hasn't been the great, seamless experience that I remember and it feels like performance has gotten worse. Firefox is probably my biggest use of the 1Password program and the extension has felt broken/neglected for years.