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ThunderPlunger Requires Restart

Sorry but this addon is no longer supported in TB 60. See below.

This add-on provides a few new ways to keep Thunderbird clean.

Rated 4 out of 5 stars (31)
39 users

Outgoing Message Format Requires Restart

Set the default outgoing message format to Auto-Detect, Plain Text Only, Rich Text (HTML) or Plain and Rich (HTML) Text.

Rated 4 out of 5 stars (15)
24 users

WebDAV for Filelink Requires Restart

Adds the possibility to use a WebDAV store for Filelink. With this extension you can link attachments to a WebDAV service, for example as provided by Apache's mod_dav or some public services.

Rated 4 out of 5 stars (21)
78 users

GPO support For Firefox and Thunderbird

For work with new versions, use autoconfiguration module https://mozillagpo.sourceforge.io/
Firefox and Thunderbird extension to manage user preferences and user profile CA certificates using group policy

Rated 4 out of 5 stars (13)
58 users

OBM Connector Requires Restart

OBM Lightning Calendar and addressbooks connector

Not yet rated
59 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 (12)
4 users

KeePass Helper Requires Restart

Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.

Rated 4 out of 5 stars (40)
8 users

ThamiZha! Solthiruthi(Tamil spellchecker)

Tamil Spell checker by Thamizha.com Team.
Its creators include Ve. Elanjelian, S. Muguntharaj, Radhakrishnan, Vijay, A. Suji, Malathi Selvaraj, Sri Ramadoss, Yagna Kalyanaraman, Lavanya Sundararajan, Pranava Swaroop and Siddarth Vengatesan.

Rated 4 out of 5 stars (9)
32 users

AMBER A.I. Requires Restart

Artificial intelligence-based aircraft parts procurement and RFQ sending tool for Thunderbird

Not yet rated
1 user

Yelp Search Toolbar Requires Restart

YELP SEARCH TOOLBAR, NOW IT MORE EASY TO REVIEW & TALK ABOUT WHAT'S GREAT - AND NOT SO GREAT - IN YOUR AREA

Not yet rated
0 users

TB Menubar Unread Notifier Requires Restart

Output the number of unread messages in all inboxes into the temporal file /tmp/testUnread. As a result, this output file can serve as an input for other applications to read and show notification either on a dock bar or on the menubar.

Rated 3 out of 5 stars (4)
0 users

Stylish Tools Requires Restart

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (3)
3 users

Return Receipt Toolbar Button Requires Restart

Allow you to add a Return Receipt button to mail compose window toolbar.

Rated 5 out of 5 stars (21)
135 users

Babylon Dictionary Word Search Requires Restart

Find the definition for a selected word in a web page or an email.
Right click over the selected word, choose the option "Search in Babylon" and that's it! You will have a new window with the definition of the selected word.

Rated 4 out of 5 stars (44)
6 users

Advanced Unread Folders Requires Restart

Adds a folder view showing unread folders, including their hierarchy. This is helpful if you have a lot of folders to make sure you don't miss an email, or if you are not happy with the existing unread folders view.

Rated 3 out of 5 stars (19)
37 users

Locale2MUI Requires Restart

Sets Firefox/Thunderbird Locale to Windows (MUI) Language on startup

Not yet rated
0 users

New Mail Attention Requires Restart

This addon calls attention to main window on new message arrival.

Rated 4 out of 5 stars (52)
33 users

Kamus Pengecek Ejaan Bahasa Indonesia

Spell checker dictionaries for Bahasa Indonesia

Rated 4 out of 5 stars (16)
505 users

Profile Folder Button

Adds profile folder/directory button.

Rated 4 out of 5 stars (3)
8 users

Reply As Original Recipient Requires Restart

Reply with the From: field set to the To: field from the original email.

Rated 4 out of 5 stars (8)
30 users