I'm using Thunderbird for quite a while now and have successfully ported all my emails – some of them several years old – from my Windows7 setup to Ubuntu.
My Thunderbird contains five different email accounts, one of which is a GoogleMail account using two-step-verification.
Now here's the problem: ever since updating to Ubuntu Precise 12.04, Thunderbird keeps forgetting my passwords. When trying to retrieve mails it states: 'login or password incorrect' for every single one of my accounts. I then chose to 're-enter password' and ticked the option to 'Use Password Manager to save password'.
While this always worked, it never survived a logoff or reboot. I always had to reenter the same passwords after every logon again and again.
How can I force Thunderbird to actually remember my passwords forever?
Best Answer
Scouring the internet for answers didn't help. I had the idea to purge-remove my thunderbird installation but I feared losing at least parts of my email archives in the process.
Luckily, I found a solution that went almost hassle-free:
Edit
->Preferences
Security
->Passwords
Saved Passwords
delete all
retrieve all
Use Password Manager to save password
That's it, your passwords should be all set again. Reboot (or logoff-logon) to test if they really stick.