Miscellaneous

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Lightning Featured

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Rated 3 out of 5 stars (1,617)
1,131,057 users

Element Hiding Helper for Adblock Plus No Restart

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (362)
987,037 users

Personas Plus

Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.

Rated 3 out of 5 stars (876)
775,099 users

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (504)
298,772 users

ImportExportTools

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (79)
270,155 users

MinimizeToTray revived

Minimizes windows into the system tray.

Rated 5 out of 5 stars (236)
268,560 users

JavaScript Debugger

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aims to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Rated 4 out of 5 stars (48)
247,174 users

Extra Folder Columns Featured

This extension is for those TB3 users who want the multiple-columns view that TB2 allowed

Rated 4 out of 5 stars (168)
213,020 users

SQLite Manager

Manage any SQLite database on your computer.

Rated 5 out of 5 stars (52)
207,828 users

DOM Inspector

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (53)
156,073 users

Toolbar Buttons

A button pack for Firefox, Thunderbird and Sunbird

Rated 4 out of 5 stars (299)
146,213 users

MR Tech Toolkit

(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.

Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...

Rated 4 out of 5 stars (133)
137,068 users

FoxClocks

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

Rated 4 out of 5 stars (280)
103,759 users

Signature Switch Featured

Switch the signature on/off or choose a new one from your predefined set...

Rated 4 out of 5 stars (141)
90,917 users

UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (182)
87,523 users

Exif Viewer

Displays the Exif and IPTC data in local and remote JPEG images.

Rated 4 out of 5 stars (79)
83,111 users

Quicktext

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Rated 5 out of 5 stars (217)
71,971 users

Google Calendar Tab

Adds the Google Calendar web interface as a new tab directly into Thunderbird. Creating and viewing events works just as it would in a browser like Firefox

Rated 4 out of 5 stars (67)
62,381 users

Nightly Tester Tools

Useful tools for the nightly tester.

Rated 4 out of 5 stars (182)
59,645 users

Gmail Twitter & Facebook Signature - WiseStamp

Using Gmail? Google mail? Yahoo? Hotmail or Thunderbird? Empower your email with your Twitter, Facebook, LinkedIn, Youtube, eBay item and many more apps...Create a powerful & effective email signature that dose the job ☛ Get it now!

Rated 4 out of 5 stars (281)
50,171 users