Folders and Filters

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Silent Block

Minimum and fast URL blocker.

Rated 4 out of 5 stars (30)
3,931 users

CapsKiller Requires Restart

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

Rated 5 out of 5 stars (2)
45 users

Resubmit Requires Restart

(Re)submit multiple messages to a predefined recipient(s)

Not yet rated
48 users

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)
382 users

Tidybird Requires Restart

Organize email into folders quickly and easily.

Rated 3 out of 5 stars (5)
257 users

SavedSearchThemAll Requires Restart

A Thunderbird extension to automagically extend all the saved searches to all the foders!

Rated 4 out of 5 stars (2)
415 users

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 (5)
459 users

Novacoin Antispam Requires Restart

Keep a correspondence with only the well off people.
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Not yet rated
2 users

QuickFilter Watched Threads Requires Restart

Adds a filter to show only watched threads

Rated 5 out of 5 stars (1)
138 users

Toggle Folderpane View Requires Restart

This addon provides a toolbar button for toggling between the "All" and "Favorite" views in the folderpane.

Rated 5 out of 5 stars (3)
603 users

Gravatars Requires Restart

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

Not yet rated
66 users

Purge Events Plus Requires Restart

Purge events from Sunbird and Lightning files and thereby cleanes the calendar

Rated 4 out of 5 stars (6)
589 users

TotalQuickFilter Requires Restart

Reboot the QuickFilter bar.

Rated 3 out of 5 stars (8)
231 users

Feedly Synchronizer

Synchronize your favorite RSS sources with Thundebird and Feedly

Rated 4 out of 5 stars (9)
265 users

Inbox Cleaner of expired Emails Requires Restart

Moves expired Emails out of your Inbox!

Not yet rated
27 users

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.

Not yet rated
53 users

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.

Rated 4 out of 5 stars (12)
929 users

Delete Only Empty Folder Requires Restart

Disallows to delete not-empty mail folders.

Rated 5 out of 5 stars (1)
46 users

Mark GMail Read

Automatically marks all messages in the [Gmail] folder and all subfolders as read.

Rated 3 out of 5 stars (5)
191 users

ExtendIMAPFilters

This addon extends filtering to read messages downloaded during an IMAP synchronization (bug 308148)

Rated 5 out of 5 stars (2)
264 users