Not displaying all local folders because windows path length too long SOLVED
I am using Thunderbird V144.0.1 on a computer running Windows 11 Home build 26100. Suddenly, Thunderbird stopped displaying some of my Local Folders. I don't know what I did to cause it; I don't recall making any changes. On investigating the issue, none of the other help I found in the forums or elsewhere on-line worked for me.
While performing one of the instructions, I was trying to copy my Thunderbird profile mail folder to a different location before creating a new profile. Copying the folder gave me an error of a file name being too long. I moved the folder with the too-long file into a different subfolder with a shorter directory name. Lo and behold, all of my folders, including the ones I moved, are now appearing in my Thunderbird Local Folders.
I don't really need any help, but I wanted to post this solution since I didn't encounter it anywhere else.
Modified