User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.1b2) Gecko/20090211 Gentoo Firefox/3.1b2 Build Identifier: Version 2.0.0.19 (20081231) Currently, the list seems to be based on which folders were recently visited. This might include some very useless entries, like RSS feeds or Inboxes of another account. Further, folders to which mails were recently moved are NOT included - this might be important when cleaning up an inbox ... Reproducible: Always Steps to Reproduce: 1. Start with an inbox with 3 mails (A, B and C). 2. You need two other folders, F1 and F2. 2. Right click on A, Move to F1. 3. Right click on B, Move to F2. 4. Right click on C, Move to -> Recent folders Actual Results: F1 is not included in the list. Expected Results: F1 should be included in the list. This goes beyond bug 350661.