I automatically, downloaded and installed the lasted update to Thunderbird 78.2.2 on September 19, 2020 and have not been able to download or send e-mail since installing the update. The update you posted on Sunday to bring Thunderbird to 78.3.1 did not fix the problem, since I did not have a "Crash" problem with Thunderbird before this update or the 78.2.2 version Please help in this matter. I do not like using Outlook Email and can not wait to stop using it as soon as possible. Question, is there a way to uninstall 78.2.2 that will take me back to the previous version that worked and not remove all my e-mails and settings? Thanks for your help in this matter.