Top-Rated Extensions

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Address Close Button Requires Restart

Adds a Address Close Button to mail compose window.

Rated 5 out of 5 stars (26)
243 users

Nostalgy Requires Restart

Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Rated 5 out of 5 stars (227)
821 users

Saved Password Editor Requires Restart

Adds the ability to create and edit entries in the password manager.

Rated 5 out of 5 stars (390)
172 users

Sun Cult Requires Restart

Worldwide Sunrise, Sunset, Twilight, Moonrise and Moonset...

Rated 5 out of 5 stars (109)
12 users

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (198)
13,731 users

Element Hiding Helper for Adblock Plus

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (473)
217 users

No Message Pane Sort

No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers, thus, locking the sorting order of your emails.

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

Rated 5 out of 5 stars (59)
3,808 users

Macro Template

Macro Template is to replace mail templates with macros for date formatting.

Rated 5 out of 5 stars (9)
550 users

Archive This Requires Restart

Provides keyboard shortcuts for filing messages into nine configurable "favorite" folders using user-defined keys. Also provides a simple filter system with a keyboard shortcut to file the currently selected message(s) into the correct folder.

Rated 5 out of 5 stars (59)
36 users

OrderAtt Requires Restart

OrderAtt allows you to re-order the attachments list.

Rated 5 out of 5 stars (5)
8 users

Sender Address Columns Requires Restart

Adds optional columns to the Thread Pane to allow sorting email messages by:
* Full sender address -- e.g. "someone@example.com"
* Sender's domain -- e.g. "example.com"
* Sender's local part -- e.g. "someone"
* Sender's TLD -- e.g. ".com"

Rated 5 out of 5 stars (5)
5 users

Join-NG Requires Restart

Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".

Rated 5 out of 5 stars (5)
687 users

Phoenity Icons

Phoenity icons for Thunderbird

Rated 5 out of 5 stars (68)
12,385 users

Stop Ignoring Reply:To Requires Restart

Default "Reply" functionality pays attention to "Reply-To" in original email

Rated 5 out of 5 stars (12)
71 users

Toggle Message Pane

Adds a Preview Button, toggles the message preview

Rated 5 out of 5 stars (8)
526 users

userChromeJS

Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened. Also add a toolbar button which reloads userChrome.js in the current window.

Rated 5 out of 5 stars (8)
300 users

ConfirmFolderMove Requires Restart

Introduces a preference that allows users to be prompted before moving folders.

Rated 5 out of 5 stars (21)
774 users

MoreLayouts

Adds additional Wide Thread View and Stacked View to Thunderbird along with Reversed views. Plus configurable Fullscreen F11 and Message Pane F8 toggles. Also starring Vertical Tabs.

Rated 5 out of 5 stars (11)
64 users

Rise of the Tools

Moves the toolbar back above the tabbar.

Rated 5 out of 5 stars (66)
221 users

ConQuery Requires Restart

Context searching for everyone and URL manipulation tool for advanced users...

Rated 5 out of 5 stars (36)
0 users