I'm having the following issue with the 1Password Firefox extension (version 3.9.4). I press Command-\ to log in to a web site for which I have one login stored. First, I'm prompted to type my master password. After entering the password, instead of filling and submitting the unique login, it's just highlighted in the extension, and I'm forced to press Enter again to actually submit the login. In contrast, when I'm in Chrome or Safari, I don't have this issue; after typing the master password, the login is immediately filled and submitted. Also, there is no issue in the Firefox extension if I've recently entered my master password, so I don't need to enter it again.
Has anyone else observed this issue? Is there some way to fix it? It seems minor, but it is a bit annoying given that things work the way I want in other browsers. Thanks for the help!