Comment 6 for bug 196058

Same issue here...
Created a new profile... worked like normal....
Then, opened previous profile... tainted thunderbird again.

My solution [hack] was to create new profile and delete the old one:
Creating a new profile means you need to set up your mail accounts again. *Please back up all of your email messages before doing this! I'm not responsible for any mail lost during this procedure.

1) `thunderbird -ProfileManager`
2) Create new Profile
4) Start Thunderbird using new profile
5) You will then have to type in your setting again.

Note: If you get thunderbird working normally, you will taint thunderbird if you open your previous profile and will have to start again. Because of this, I ended up deleting my previous profile.

Hope this hack helps.