The problem is that if you have, say, 8 tabs open for for mailboxes on the same IMAP account, when you launch Thunderbird you will be prompted for the password 8 times, once for each open tab. To reproduce: - Removed saved password from Password Manager - Open 8 tabs for mailboxes from the same account - Quit / Relaunch Thunderbird - Note you are prompted for the password for the account 8 times; once for each open tab. Thunderbird should realize you entered the password for the first tab and use that password.

The same - having to enter password 4 times occurs on my newly installed version 3.0. Only one tab (inbox) is present. I have no master password

this is a duplicate of another bug

I can also confirm this bug. Upon starting thunderbird I receive multiple master password dialogues (currently 4) - even with only one tab open. I have the "Lightning" and "Google contacts" addons enabled and I believe these are responsible for triggering some of the dialogues. I do not have "check for mail at startup" enabled on any of my 3 accounts (2 IMAP google accounts, 1 POP3 account). The best plan of action at the moment seems to be to just enter your password once and then cancel all the rest. There is no need to enter your password into each dialogue but it is annoying.

Also of note this is not specific to Mac OS and I dont think it should be assigned to the "toolbars and tabs" component either but "general". Is everyone using Lightning? bug 548224 may be a duplicate.

Comment 0 seems like a duplicate of / would be fixed by bug 338549. The lightning issue is part of the Lightning bug that's around somewhere.

This has been fixed by bug 338549 and its dependencies for Thunderbird 3.1.