User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; nl-NL; rv:1.9.1.1) Gecko/20090715 Thunderbird/3.0b3 I had my inbox-folders of my accounts marked for offline use (RMB > Properties > Synchronization > Select this folder for offline use), but not its subfolders. After upgrading to TB beta 3 all the (sub)folders are marked for offline use. (I see no way to undo this for all my folders). Reproducible: Didn't try Steps to Reproduce: 1. Have a TB2 profile. 2. Mark the INBOX folders of the Accounts for offline use (Props > Sync) 3. Upgrade to TB beta 3 Actual Results: All folders are marked for offline use, not just the INBOX Folders. Expected Results: 1. The INBOX folders which were marked for offline use should still be marked for offline use. 2. The other folders that were not marked for offline use, should still not be marked for offline use.

Please see the comments/discussion on bug 505759