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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 (105)
22,619 users

Theme Font & Size Changer No Restart

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (144)
85,437 users

EHTip

Word translation in tooltip with English⟷Croatian dictionary already incorporated.

Rated 5 out of 5 stars (58)
5,571 users

SmoothWheel

Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).

Rated 5 out of 5 stars (247)
43,515 users

XNote++

Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 and Seamonkey >= 2 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.

Rated 5 out of 5 stars (64)
18,147 users

FlashGot Mass Downloader

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Rated 5 out of 5 stars (491)
910,037 users

S3.Google Translator

S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.

New Feature: Language learning!

Rated 5 out of 5 stars (205)
229,872 users

Folder Pane View Switcher

Add arrow buttons for rotating among folder views, and switch to "All Folders" view when hovering over the folder pane during drag & drop.

Rated 5 out of 5 stars (36)
9,667 users

Webpage Screenshot in Firefox (♥♥♥♥♥)

FireShot Webpage Screenshots captures pages entirely. Demo: http://bit.ly/RlBQMV

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Rated 5 out of 5 stars (428)
253,554 users

ConfirmFolderMove

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

Rated 5 out of 5 stars (10)
4,367 users

Nostalgy

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

Rated 5 out of 5 stars (144)
8,418 users

Archive This

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 (23)
1,525 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 (35)
4,581 users

Get Selected Mails

Gets new messages for selected mail accounts.

Rated 5 out of 5 stars (7)
816 users

CompactHeader Featured

Add symbol in header plane to switch between compact and expanded view. Options to switch between one or two lines compact view, which buttons should be displayed in header pane. For Thunderbird 36 and older use version 2.0.9 (see version history)

Rated 5 out of 5 stars (167)
138,749 users

No Message Pane Sort by Mouse

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 (18)
1,412 users

Show InOut

Adds two columns to the list of mails. One shows an indicator wether a mail is incoming or outgoing, the other shows the sender or the recipient of the mail respectively...

Rated 5 out of 5 stars (38)
2,439 users

IMAP Received Date

Make the “Received” column in IMAP folders show when messages were actually received.

Rated 5 out of 5 stars (6)
1,397 users

Slideshow

Displays a slideshow of picture attachments. When email has attached pictures, it displays "View as Slideshow" button next to the attachment. Button click pops a slideshow window with all the images, allowing you to zoom in/out, save...

Rated 5 out of 5 stars (67)
6,708 users

Search for Sender

Adds two items to the threadpane context menu, 'Search for this sender' and 'Search for this subject'. This basically takes the sender or subject of the selected message, copies it to the QuickSearch window and starts the search.

Rated 5 out of 5 stars (19)
2,314 users