Top-Rated Extensions

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LastColour

Colour your text to the "last-picked" colour you chose in the colour-picker. Now you don't have to use the colour picker every time.

Rated 4 out of 5 stars (3)
277 users

AdRemind.Me

Want to keep your favourite Web sites alive even when you're using Adblock Plus? AdRemind.Me helps you to supporting your favourite Web sites in deactivating periodically Adblock Plus ad filters only on these sites for 20 seconds.

Rated 4 out of 5 stars (3)
1 user

ScrapBook AutoSave Improved

ScrapBook AutoSave Addon, with some extra features.

Rated 3 out of 5 stars (5)
515 users

Vagex Firefox Add-on

Vagex is a view exchange site which will expose your video to thousands of members in order to increase the view count. With our system, YouTube will see all the views your videos are getting and promote it even more, having a sort of viral effect.

Rated 3 out of 5 stars (6)
7,777 users

Togglify Add-on Toggler No Restart

Adds toolbar buttons for each restartless add-on (including user scripts and plugins) to toggle its enabled state.

Rated 3 out of 5 stars (7)
32 users

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)
785 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 (283)
79,147 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)
16,663 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 (83)
138,639 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)
201 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)
1,024 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)
515 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)
111 users

TotalSpoof No Restart

Set most common Firefox user-agent and window.navigator values.

Rated 5 out of 5 stars (1)
286 users

Persian transliteration No Restart

Helps transliterating Persian texts.

Rated 5 out of 5 stars (1)
30 users

Słownik synonimów PL

Adds to browser Polish synonyms dictionary from package LibreOffice.

Rated 5 out of 5 stars (1)
117 users

Viewhance No Restart

Additional functionality for the browser's default image and video viewer.

Rated 5 out of 5 stars (1)
541 users

Standalone SeaMonkey Mail No Restart

Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.

Rated 5 out of 5 stars (1)
32 users

True Full Screen in SeaMonkey No Restart

This extension enables true full screen mode in SeaMonkey for HTML5 video players, slide-shows, etc. and also for full screen invoked manually with the F11 key.

Rated 5 out of 5 stars (1)
154 users

Youtube Video Size

Watch Youtube videos in full page size.

Rated 5 out of 5 stars (1)
137 users