Top-Rated Extensions


Launchy Requires Restart

Launchy will enable you to open links and mailto's with external applications...

Rated 3 out of 5 stars (89)
4,767 users

Mailsleuth Requires Restart

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)
873 users

ShowIP Requires Restart

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 (286)
49,050 users

clamdrib LIN Requires Restart

"clamdrib LIN" ist wie der Name schon sagt die Weiterentwicklung des Add-on clamdrib, allerdings nur noch für Linux. Sämtliche E-Mails, Feeds und News werden auf Viren und anderes Ungeziefer geprüft und gemeldet. Gelöscht wird hierbei jedoch nichts!

Rated 4 out of 5 stars (3)
609 users

YouTube Downloader and Converter Requires Restart

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

Rated 4 out of 5 stars (3)
6,840 users

History Janitor Requires Restart

Firefox does not give an option to remove the oldest entries from the history. History Janitor automatically purges history entries on Firefox startup. The user is allowed to specify a number of days. Everything older than this number is deleted!

Rated 3 out of 5 stars (12)
2,317 users

ScrapBook X AutoSave Requires Restart

Automatically saves web page to ScrapBook on browsing.

Rated 4 out of 5 stars (2)
849 users

No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
7,147 users

Right Click Watch Ignore Requires Restart

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

Rated 3 out of 5 stars (6)
204 users

Validaty Requires Restart

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)
848 users

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

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 (87)
93,344 users

Forumzilla Requires Restart

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)
98 users

Answers Questions Requires Restart

Adds to browser simple answers questions scripts generator.

Rated 5 out of 5 stars (1)
15 users

Page Navigation Buttons

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)
306 users

BackupHelper Plus for ScrapBook Plus / XSidebar Requires Restart

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)
238 users

Serenatas For You

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

Rated 5 out of 5 stars (1)
5 users

Modify HTTP Response

Rewrite http response body using search & replace patterns

Rated 5 out of 5 stars (1)
842 users

Share to Google+ Page Requires Restart

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

Rated 5 out of 5 stars (1)
56 users

Unpacked extension loader Requires Restart

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)
3,016 users

Find Buttons

Adds buttons to open and manage the find bar.

Rated 5 out of 5 stars (1)
177 users