Folders and Filters
Inbox Cleaner of expired Emails Requires Restart
Moves expired Emails out of your Inbox!
TotalQuickFilter Requires Restart
Reboot the QuickFilter bar.
Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.
Automatically marks all messages in junk folders as read.
Hide Local Folders Requires Restart
Removes the "Local Folders" entry from the folder pane.
Collapsed Unread Requires Restart
Shows unread email count for collapsed folders even if the unread mails are in subfolders.
Folder Levels Requires Restart
Rank your email folders by how much you care about them, and hide the ones you don't need right now.
CapsKiller Requires Restart
Caps Killer is a protection against newbies using caps in their mails.
folderplus Requires Restart
This extension adds some basic missing features about folders.
Move mails to their conversation folder. Navigate to folder with new keyboard shortcuts.
Reply Monitor Requires Restart
Keep track of your emails and replies (Lightning is required).
Note: the name of this add-on has been changed to Reply Monitor because the previous name is a registered trademark.
SmartFilters Requires Restart
Tired of writing a lot of filters? Install SmartFilters now to organise your mailbox automatically. It can sort out your mailing lists and robot emails.
IMAP Received Date Requires Restart
Make the “Received” column in IMAP folders show when messages were actually received.
quickFilters Requires Restart
Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.
By popular demand, supports SORTING filters alphabetically.
SavedSearchInSubFolders Requires Restart
This addon allows virtual folders (saved searches) to automatically process all subfolders of their selected target folders.
The search targets are updated automatically whenever a new folder is added, or a virtual folder is updated.
Automatically marks all messages in the [Gmail] folder and all subfolders as read.
QuickArchiver Requires Restart
Clean up your inbox! While moving a mail the first time, QuickArchiver remembers the destination folder and enables you to move further mails with a single click. You can apply rules by sender, recipient and subject.
Folder Pane View Switcher Requires Restart
Add arrow buttons for rotating among folder views, and switch to "All Folders" view when hovering over the folder pane during drag & drop.
Purge Events Plus Requires Restart
Purge events from Sunbird and Lightning files and thereby cleanes the calendar
Color Folders Requires Restart
Color your Folder Treeview Icons!