Folders and Filters

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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.

Rated 4 out of 5 stars (6)
28 weekly downloads

Rethread

This addon adds an entry in the right-click menu which re-threads selected messages together (groups selected messages into the same thread)". This is done by _modifying_ messages; the author of the addon declines any responsibility for data loss.

Rated 3 out of 5 stars (5)
28 weekly downloads

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.

Rated 4 out of 5 stars (7)
28 weekly downloads

Tidybird Requires Restart

Organize email into folders quickly and easily.

Rated 4 out of 5 stars (10)
27 weekly downloads

Collapsed Unread Requires Restart

Shows unread email count for collapsed folders even if the unread mails are in subfolders.

Rated 3 out of 5 stars (6)
27 weekly downloads

CapsKiller Requires Restart

Caps Killer is a protection against newbies using caps in their mails.

Rated 5 out of 5 stars (2)
27 weekly downloads

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.

Rated 4 out of 5 stars (2)
26 weekly downloads

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.

Rated 4 out of 5 stars (3)
26 weekly downloads

Count Filters Requires Restart

This add-on provides various search filters couting values, such as total number of recipients, or number of lines, words,links in body message.

Rated 3 out of 5 stars (1)
26 weekly downloads

Inbox Cleaner of expired Emails Requires Restart

Moves expired Emails out of your Inbox!

Not yet rated
26 weekly downloads

QuickFilterPlus

Adds personal filters to quickfilter toolbar

Rated 4 out of 5 stars (1)
26 weekly downloads

Gravatars Requires Restart

Show a column with the Gravatar-picture and sender-name in email folders.

Not yet rated
26 weekly downloads

Mark GMail Read

Automatically marks all messages in the [Gmail] folder and all subfolders as read. If your GMail uses localized (translated) Gmail folder names, you set them in Thunderbird preferences: extensions.mark_gmail_read.folder_names.(all_mail|important|star

Rated 3 out of 5 stars (5)
25 weekly downloads

Delete Only Empty Folder Requires Restart

Disallows to delete not-empty mail folders.

Rated 5 out of 5 stars (1)
8 weekly downloads

YNote Requires Restart

Make some text notable on the each folder in folder's property dialog box.

Rated 5 out of 5 stars (1)
0 weekly downloads

Mailing list filter Requires Restart

Mail filter search term using mailing lists (and not whole addressbooks).

Not yet rated
0 weekly downloads