uninstall update
Update from 38.7.2 to 45.0 cause a compatibility problem with my email host & I can't download any messages, how can I uninstall the update?
Opaite Mbohovái (2)
Problems after update (such as what you describe) are typically caused by antivirus, and extensions installed into Thunderbird. Please start Thunderbird in safe mode https://support.mozilla.org/en-US/kb/safe-mode-thunderbird
Is the problem gone??
I don't have any antivirus add ons or extensions