Message and News Reading

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MarkSubfolders New

Mark all read for Subfolders

It's the same like MarkSubfolders but it's compatible with Firefox 4 and later.

Rated 5 out of 5 stars (1)
1,085 users

Keyword Highlight

Keywordhighlight changes color/size/weight of your favorite keywords...

Rated 4 out of 5 stars (20)
4,336 users

Join-NG

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

Rated 5 out of 5 stars (2)
2,226 users

BiDi Mail UI

Direction control and BiDi-related charset misdetection correction

Rated 4 out of 5 stars (27)
3,783 users

Sender Name

Rated 4 out of 5 stars (40)
2,557 users

Quote Colors

Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.

Rated 4 out of 5 stars (43)
14,809 users

Zoom Button for Thunderbird

Zoom in, zoom out, and reset zoom with one toolbar button. Works in the Compose window too.

Rated 4 out of 5 stars (11)
3,237 users

QuoteCollapse

Collapse and expand quotes. Please see the extension homepage for...

Rated 4 out of 5 stars (26)
10,252 users

Track your shipment

Link to tracking sites. (mainly Japanese companies)

Rated 3 out of 5 stars (5)
2,032 users

FireTray

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Rated 4 out of 5 stars (259)
31,388 users

ReFwdFormatter

Remove the ">" prefix from quote when you make a reply.
Remove "[" and "]" from the subject when you make a forward.

Rated 4 out of 5 stars (7)
3,650 users

Menu On Top (SuperMenu Avatar) No Restart

Move the Thunderbird menu bar to the top. Choose from a selection of visual styles + colors. Add frequently used bookmarks and an avatar icon without wasting precious screen space. Bookmark your favorite sites, emails, folders or configuration pages.

Rated 5 out of 5 stars (3)
1,154 users

Text Link

Allows URI texts written in webpages to be loaded by double clicks.

Rated 4 out of 5 stars (293)
138,844 users

ConfigDate

ConfigDate allows to configure the "Date" column in message threadpane. When displaying the message header, it is possible to display the (default) formated date or the senders local sent time (Date-String).

Rated 3 out of 5 stars (25)
10,632 users

RSS Editor

Desktop RSS editor for casual editing of RSS 2.0...

Rated 4 out of 5 stars (12)
69 users

RSS Linkify Subject

Linkify Subject header with Content-Base URL when viewing RSS item to easily open it in...

Rated 3 out of 5 stars (5)
22 users

Paste Feed Location

Fix bug 296542 by adding a Paste context menu to the Feed Properties (add subscription) dialog.

Not yet rated
5 users

ManualJunkAction

Introduces an option to specifically set which folder manually marked junk will go to per account.

Rated 4 out of 5 stars (2)
398 users

xSearchbarT2

Somewhere between Thunderbird 1.5 and Thunderbird 2 the message search bar disappeared. This extension restores the search bar. Thunderbird 2 and newer only.

Rated 3 out of 5 stars (8)
589 users

xSidebar for Thunderbird

Firefox sidebars for Thunderbird.

Rated 4 out of 5 stars (11)
929 users