Up & Coming Extensions
Clippings Requires Restart
Save frequently-entered text for pasting later.
Yet Another Remove It Permanently Requires Restart
Remove elements and block content on Web pages.
ThunderBirthDay Requires Restart
Display birthdays from the Thunderbird addressbooks as events in Lightning.
Buttons! Requires Restart
Adds buttons to the Thunderbird toolbars such as Next! and Previous! buttons for navigating through all messages instead of just unread ones. See homepage for more...
Manage your installed personas (lightweight themes).
Spanish Dictionary for Spelling Requires Restart
Important!!! If you can't see the Mexican flag, please click View --> Toolbars --> Bookmarks Toolbar.
Select a text in Spanish appearing on any web page and get a spelling check for it immediately!
Bring to OneNote Requires Restart
Send text and images to Microsoft Office OneNote from firefox. With section dialog, we can select an OneNote section to store page with title.
MailHops Requires Restart
MailHops maps the route an email took to get to you. Displaying the senders location, weather, user-agent and authentication used.
Export for Thunderbird & Lightning Launcher Requires Restart
Export for Thunderbird & Lightning is the worldwide unique printing and exporting solution for Mozilla Thunderbird and Lightning for Windows.
Multi lingual user interface: English, German, French and Spanish
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.
Unsubscribe from Mailing List Requires Restart
Allows recipients to cancel their newsletter subscriptions in the thunderbird interface.
InspectorWidget Requires Restart
Adds toolbar button and context menus for invoking the DOM Inspector (DOMi) for either chrome or content elements.
Execute JS Requires Restart
No need flash plugin on embeded youtube movies
Stylish Tools Requires Restart
Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey
Phoenity Buttons Requires Restart
Adds some toolbar buttons using phoenity icons.
Displays message headers more compact (2 lines).
Functionality for multiple screens and windows. Easily open links in other windows or on other screens, move or merge tabs, and move or merge entire windows. With graphical controls for grid positioning.
Allows for easy sending of YouTube videos to an external media player.
Rikaichan Japanese-French Dictionary File Requires Restart
A dictionary file for Rikaichan.
Mnenhy Requires Restart
The primary goal of the Mnenhy project is to make some enhancements to SeaMonkey MailNews/Thunderbird, since there're still plenty of comfort functions missing if compared to Netscape 4.x and other mail and news clients.