Join-NG Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
ImportExportTools Requires Restart
Adds some tools to import and export folders and messages
Add-on to see the average price of Bitcoin and shortcut for Bitcoin Venezuela.
USD = USA
EUR = Europe
VEF = Venezuela
ARS = Argentina
Gmail Manager NG Requires Restart
Based on Gmail Manager by Todd Long. This fork is intended to a supported version of Gmail Manager since Todd appears to have gone MIA. Manage multiple Gmail accounts and receive new mail notifications.
AutoCopy_rebirth Requires Restart
Lightweight add-on that automatically copies any highlighted text to clipboard.
EzStylist Requires Restart
Allows including CSS when composing e-mails.
OpenMixTools Requires Restart
convert session files of yamaha consoles, print channel lists and reports
Send Filter Requires Restart
This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.
Opens the Add-ons window to perform tasks on your installed Extensions, Themes, Plug-ins and Language packs.
BBCodeXtra Requires Restart
(Sorry, no plans to port this add-on to Webextensions)
BBCodeXtra is an extension, compatible with Mozilla FireFox (up to 57) and Seamonkey, which adds to the context menu new commands to insert BBCode/Html/XHtml codes in an easy and fast way...
Flashblock Ultimate Alt Zero Requires Restart
This extention allow to remove focus from embedded flash object by pressing Ctrl+Esc or Ctrl+F12 (see mozilla superbug: 78414) and move focus back by Alt+Esc or Alt+F12
USE THIS INSTEAD: https://addons.mozilla.org/en-US/firefox/addon/focus-regainer/
Copy Plain Text 2 Requires Restart
Copies text without formatting
Generate e-bay templates online - in few minutes.
MDN Interface Documentation Generator Requires Restart
Generate MDN Interface Documentation from IDL files.
Extension List Dumper 2 Requires Restart
This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...
Filter Uploader for Adblock Plus (unofficial) Requires Restart
DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!
This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...
Scrapbook X CopyPageInfo Requires Restart
Copies the information from ScrapBook data items.
Quickfile Requires Restart
Quickfile is an extension for Mozilla Thunderbird which initially aimed to speed up filing of messages into your mail folder heirarchy but now includes features for navigation and folder creation...
Viewer for OpenDocument Format office files. It can display documents saved from LibreOffice, OpenOffice, Calligra, Abiword, Microsoft Word, Excel, PowerPoint. The documents should be saved in the OpenDocument Format.
XDM Hook Requires Restart
XDM integration module for Firefox