Woke up this morning. Opened up Thunderbird like I always do, and it changed on me. Cool until my Gmail wouldn't download. Tried the troubleshooting and then boom, it comes back and looks different. I turn it off, turn it back on and sure enough, it's as if it just got assigned brand new to Gmail and started downloading all of my messages again and reset all of my sorting columns. It's grouping my gmails and I can't figure out how to undo that. There are arrows and other symbols I don't care about crowding my lists.
How do I revert back to the old way? The Folder column is okay with it's fancy colors but the rest sucks. Please, let me revert back.