I've been using 1Password since its inception, and this is an issue I've never come across before. The extension icon is still in the menubar, but when I click on it the information shield that comes up is blank. I can still use command\ to fill in username and password in most cases, but I can't get the normal pulldown to work. I've restarted, checked for updates and reinstalled the extension twice. Still no luck. Any suggestions much appreciated.
I'm on a MacBook Pro running 10.8.4 and Firefox 23.0.1