Folder pane gone in Thunderbird
I use Thunderbird for e-mail, and am happy about it. But suddenly, the left pane with all my folders was gone!
Everything I could find on the net was: Move the mouse to the left, untill the arrow becomes a double arrow. Then pull the side to the right, and the pane will appear. But it wasn’t that.
Then I opened the advanced properties editor and searched for “Folder”. Then I saw an interesting key, which suggested that the Nostalgy plugin (which I have installed) could turn the folder pane on and off, if you press l (lower case L) when e.g. looking at a message. I pressed l, and then it came right back.
If you like keyboard commands (like me), then you sould select Tools | Nostalgy | Nostalgy ussage options. This is a good read.