If this is an addition, then it should be added as a comment to the question you created and not entered as a new question. Please keep all responses regarding your question in the appropriate place else the conversation may get confusing.

As a help, here's a link to original question:

• https://support.mozilla.org/en-US/questions/1080356

Thank you for the instruction. I'm pretty inexperienced with forums.

I was quite upset about the lost emails. I had already tried to quit Thunderbird and it was frozen. "I Force Quit" Thunderbird and then restarted my Mac. Force Quit warned me that I might lose data, but I thought that maybe the old stuff would be there. After I restarted, it was all there. Yay!

Locking this thread in favor of the original