When Thunderbird starts, it downloads all email then locks up. With Anti-Virus turned on or off. Why?
It says "not responding" as soon as I try to do anything. I re-start Thunderbird and it repeats the process. I cannot read the emails or perform any other function.
Alla svar (1)
https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems has a list of problems that might occur