Mozilla Thunderbird version 1.5 stores all your settings, emails and other stuff in ~/ .mozilla-thunderbird/ directory. Mozilla thunderbird version 2.0 stores all settings in ~/.thunderbird/ directory. So when you download and upgrade your version you will get a blank and new mail client. To get back your mail and other settings all you have to [...]
Recently a friend of mine, brought a new Laptop. He installed Red Hat Enterrpise Linux workstation 4.0. However, after installation he realized that he lost all his Mozilla thunderbird emails and Firefox bookmarks, chat client logs and other files.
I told him just copy all old files from /home/$you to a new system /home/$you directory. He was trying some age-old tutorial from net, which explains how to copy files using tar and restore it back to new system. During this procedure, he was messing up with file system permission.