Folder listed in Sidebar not in Deletable list.
Phantom Deleted folder reappearing in IMAP, can be deleted in both Thunderbird and in Squirrel, but reappears in Thunderbird (will report this to Mozilla too).
This is in Thunderbird 17.0.6, Firefox 22.0 on Apple Mac OS 10.7.5.
2 emails have come in but there is no "unread" count next to INBOX in Sibebar
refresh the screen, and the "unread" count is then updated to show '2'
Even after screen refresh, the phantom Deleted folder mentioned above, is showing in Deletable folders list, but not in Sidebar.
Refresh screen again, and the Deleted folder appears in Sidebar and in deletable folders list.
Delete 'Deleted' folder
The deleted 'Deleted' folder remains in the sidebar but if clicked on, gives a "Folder does not exist" error.
On iPad 3, I have also had the Sidebar disappear completely. The workaround was to close the tab, and then log back into the webmail, and reselect Squirrel as the mail client, after which the Sidebar reappeared. The above bugs occur also in iOS and Windows 7 SP 2
After reading all but one of the 7 new emails, with only one still highlighted as 'Unread', the Inbox 'unread' tally still shows as 7.
View on iPad 3 iOS 6.1.3, showing the number of unread emails as 5 in the Sidebar, compared to the actual number 3 in the list.
Doubtful this is a bug unless you can provide more specific information that indicates such. Rather, you might benefit from installing the Folder Synchronization plugin, using one client at a time, and otherwise asking for help on the squirrelmail-users mailing list (making sure to read and follow the mailing list posting guidelines).
In addition to Paul's comment, the issue with the folder showing, but not being deletable/selectable is not a bug. The is the result of a folder being subscribed to, but not existing. This is perfectly valid within the IMAP spec, which is also why Thunderbird shows the folder. You need to unsubscribe from the folder. It would appear that we are not listing it in the options, so you might need to do it from Thunderbird.