I have the Thunderbird mail client on my mac, and when I go into the application it automatically opens my mailbox. I'm going to be using a shared computer soon and would like to be able to 'sign out' of Thunderbird but I can't for the life of me see how to do this?
On forums / other sites it says do 'Tools > Options > Security > Passwords'
These options aren't available on the mac version.
Any help would be awesome.