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AMBER A.I.
Requires Restart
Artificial intelligence-based aircraft parts procurement and RFQ sending tool for Thunderbird
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
Stylish Tools
Requires Restart
Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey
Return Receipt Toolbar Button
Requires Restart
Allow you to add a Return Receipt button to mail compose window toolbar.
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.
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.
Locale2MUI
Requires Restart
Sets Firefox/Thunderbird Locale to Windows (MUI) Language on startup
New Mail Attention
Requires Restart
This addon calls attention to main window on new message arrival.
Reply As Original Recipient
Requires Restart
Reply with the From: field set to the To: field from the original email.
JunQuilla
Requires Restart
1) adds column with percent likelihood that a message is spam, 2) extends junk status column to show why a message was classified as junk/good, 3) adds an Uncertain folder for messages needing user decision.
tuneMDNDSN
Requires Restart
fix behavior of notifications checkboxes in compose window when editing msg as new
.vcs Support
Chat Notifier with Pop-Ups
Requires Restart
Allows to be notified when you receive chat message in Thunderbird.
eArztbrief
teclib' Protocol
Change Referer Button
Requires Restart
Button in the toolbar/status bar to change referer value.
Personal Level Indicators
Requires Restart
Shows an indicator so you can tell if an email was addressed only to you (»), a group (›), or a mailing list.
Developer AssistantTo create your own collections, you must have a Mozilla Add-ons account.
