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Mailsleuth

Mailsleuth is a add-on for Thunderbird that provides you a full email header analysis of any email in your Inbox. This add-on is designed to provide a report on the email headers on any email you choose from your inbox. MAJOR updates for Feb 2013!

Rated 3 out of 5 stars (7)
777 users

RequestPolicy Continued No Restart

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 4 out of 5 stars (4)
6,866 users

Key config

This add-on provides configurable keyboard shortcuts for several actions and a dialog to customize them.
All shortcuts can be redefined in Tools -> Key settings

Rated 3 out of 5 stars (18)
3,651 users

ShowIP

Show the IP address of the current page in the status bar. It also allows querying custom information services by IP (right click) and see location and avaiable vouchers for shopping sites. Additionally you can copy the IP address to the clipboard.

Rated 3 out of 5 stars (285)
47,836 users

YouTube Downloader and Converter

Easy to Download YouTube Videos in FLV and MP4 and Convert to MP3,AVI etc.

Rated 4 out of 5 stars (3)
7,534 users

No need flash plugin on embeded youtube movies No Restart

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
7,769 users

IE Tab + (FF 8+, 7, 6, 5, 4, 3.6, 3.5, SeaMonkey)

IE Tab + is an enhanced version of IE Tab. It supports FF 3.5 or greater, integrates IE Tab with Adblock Plus in the IE Tab engine, and synchronizes cookies between IE and Firefox. You can easily import settings from the original IE Tab into IE Tab +

Rated 3 out of 5 stars (86)
87,158 users

Right Click Watch Ignore

Adds "Watch Thread" and "Ignore Thread" to right click context menu in Thunderbird and Seamonkey.

Rated 3 out of 5 stars (6)
185 users

Validaty

One Click Validator. Provides you a button to validate a page using a validator like w3c or another user defined

Rated 3 out of 5 stars (6)
760 users

SmartWhois Launcher

This extension allows you to launch SmartWhois and perform a Whois query on the current URL. SmartWhois is a useful network information utility that allows you to look up all the available information about an IP address, hostname or domain...

Rated 3 out of 5 stars (6)
331 users

Forumzilla

Forumzilla lets you read news and blog feeds in your email application. It is similar to the feed reader built into Thunderbird, but it lets you download stories into any folder in any POP, IMAP, or local account (configurable per...

Rated 3 out of 5 stars (5)
90 users

Add-ons Button No Restart

Opens the Add-ons window to perform tasks on your installed Extensions, Themes, Plug-ins and Language packs.

Rated 5 out of 5 stars (1)
2,095 users

Answers Questions

Adds to browser simple answers questions scripts generator.

Rated 5 out of 5 stars (1)
17 users

Reload Skip Cache Button No Restart

Reload page without using content stored in the browser cache to make sure you get any updates.

Rated 5 out of 5 stars (1)
587 users

Page Navigation Buttons No Restart

Adds a few buttons to help with page navigation, including Page Top, Page Bottom, Page Down and Page Up.

Rated 5 out of 5 stars (1)
272 users

BackupHelper Plus for ScrapBook Plus / XSidebar

BackupHelper is an Add-On to the firefox extension ScrapBook / ScrapBook Plus. This is modified version of the original Add-On. Uninstall the original BackupHelper before you use this extension.

Rated 5 out of 5 stars (1)
225 users

Serenatas For You No Restart

En 4 pasos envía la serenata, sencillo, seguro y rápido.

Rated 5 out of 5 stars (1)
6 users

Modify HTTP Response No Restart

Rewrite http response body using search & replace patterns

Rated 5 out of 5 stars (1)
302 users

Share to Google+ Page

Share to your Google+ Profile or Google+ Page with just click of a button.

Rated 5 out of 5 stars (1)
74 users

Unpacked extension loader

This addon should be useful for addon developers who prefer to work with unpacked exentsions for test purpose.

Rated 5 out of 5 stars (1)
39 users