How can I open my Inbox?
Since yesterday, I can't open my Inbox. I get this page, and nothing in any of the menus gets me to see the Inbox. There may be a problem with my not having the latest version of Thunderbird. I have never been able to download a new version through Thunderbird itself. And I'm afraid to download a new version from the website and lose my old messages.
Alla svar (1)
I get this page What page? Post a screen shot so we know what your issue is and what you are seeing.
The Thunderbird program and your data files are separate. Reinstalling Thunderbird does not affect your data. That being said, like all computer operations a backup is a good practice. https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data