Why does Thunderbird keeps doubling email messages?
Every so often, Thunderbird will download all of my messages AGAIN, even though they are already in the Inbox of Thunderbird. Then I have to go thru and delete MANUALLY all of the doubles. There can be thousands!
Every so often, Thunderbird will download all of my messages AGAIN, even though they are already in the Inbox of Thunderbird. Then I have to go thru and delete MANUALLY all of the doubles. There can be thousands!
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Try to delete popstate.dat. http://kb.mozillazine.org/Popstate.dat