Top-Rated Extensions

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Identity Chooser Requires Restart

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 5 out of 5 stars (89)
8,230 users

QuickNote Requires Restart

A simple note-taking extension.

Rated 5 out of 5 stars (172)
24,451 users

Disable DragAndDrop (Thunderbird) Requires Restart

A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.

Rated 5 out of 5 stars (13)
2,044 users

Send Later Requires Restart

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (91)
62,165 users

Search as list Requires Restart

Search results appear as list (as per the "Open email as list" button).
- return to facet view with shift+close [x]
- auto open list view when few results found
- column config./sort/toggle [IMG3&4]
- apply columns to search as list menu [IMG5]

Rated 5 out of 5 stars (27)
2,607 users

Stacked Inspector Requires Restart

Switch DOM Inspector to an over/under vertical layout instead of the usual side-by-side panel layout.

Rated 5 out of 5 stars (10)
228 users

Nagios Checker Requires Restart

The statusbar indicator of the events from the network monitoring system Nagios.

Rated 5 out of 5 stars (61)
8,065 users

Password Tags Requires Restart

Adds metadata and sortable tags to the password manager.

Rated 5 out of 5 stars (12)
1,510 users

No Message Pane Sort by Mouse Requires Restart

No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers.

It is still possible to sort messages by ctrl-clicking the header.

Rated 5 out of 5 stars (22)
1,876 users

Dorando keyconfig Requires Restart

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

Rated 5 out of 5 stars (27)
8,234 users

TBDialOut Requires Restart

Place phone calls directly from Thunderbird's address book

Rated 5 out of 5 stars (9)
1,594 users

Mail Summaries

Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview

Rated 5 out of 5 stars (38)
4,773 users

uBlock Origin

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (1,927)
3,844,100 users

Copy Plain Text 2 Requires Restart

Copies text without formatting

Rated 5 out of 5 stars (83)
33,631 users

GNotifier

Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.

Rated 5 out of 5 stars (35)
10,968 users

IranZilla Requires Restart

IranZilla provides the following services in Thunderbird:

* Adds a column in the mail view for displaying Iranian dates for each email.
* Supports both English and Persian Iranian month names.
* Adds a context menu item for copying the Iranian dates...

Rated 5 out of 5 stars (23)
195 users

Addons Quick Search Requires Restart

Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.

Rated 5 out of 5 stars (11)
507 users

Transliterator

As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.

Rated 5 out of 5 stars (74)
4,901 users

Mail Merge Requires Restart Featured

Mass Mail and Personal Mail

Rated 5 out of 5 stars (147)
56,187 users

Open Long Url Requires Restart

Adds an option to your File menu to allow you to open long, multi-line...

Rated 5 out of 5 stars (7)
3 users