This note describes a method for fixing Thunderbird when it hangs while indexing. I’m posting this in case it’s useful to folks and for my own reference. It took me a quite a while to figure it out. So you have been using Thunderbird for your email for a while, on Windows, Linux, Mac, FreeBSD, and so on, for let’s say a couple of decades. If you copy your profile around much, you are bound to hit an indexing issue where Thunderbird is unable to index your archives. You open up Activity ...