Top Firefox Add-ons & Plugins for Windows

With the GoPenServer Toolbar you will have GoPenServer related news feeds and links. Built in, there is a Search Box, GoPenServer Project News Feed, GoPenServer links to the various Web services provided by GoPenServer, a GoPenServer chatroom, a link to...

Validates HTML documents using the CSE HTML Validator engine for Windows. Requires CSE HTML Validator for...

Download videos from YouTube and Google directly. Unlike VideoDownloader it does not use a proxy page, and unlike Unplug it does not create a layer over the current page. It simply try to get the absolute video path and prompt for download it. This...

Search definition or translation of words in Yandex. Select a word or phrase, right click and choose one of service. Search page is opened in a new tab. This version is the first release on CNET Download.com.What is new in this release:This version is the...

Statusbar with HTTP response header monitor. This is Firefox extension for display on statusbar panel any HTTP response header of top level document returned by a Web server. This version is the first release on CNET Download.com.What is new in this...

An extension for Turkish who is lookup service. Adds a K? button to toolbar, which you can click to see whois result. Middle click on K? button will open page in a new tab. This version is the first release on CNET Download.com.What is new in this...

Find the latest information about spywares, adwares, trojans, viruses, system processes and common applications. This version is the first release on CNET Download.com.What is new in this release:This version is the first release on CNET...

It allows a fast control through the services of DNSStuff.com. This version is the first release on CNET Download.com.What is new in this release:This version is the first release on CNET Download.com.Requirements:Windows...

Allmusic.com Search Toolbar and Popup Menu allows you to quickly search allmusic.com for the artist, album, or song of your choice. The bar keeps a complete history of your searches in a pull-down menu (while the window stays open). This version is the...

Ultimate Logging Prevention System. This extension will change the displayed login name in xanga to the xanga name that are currently reading. Therefore, the xanga tracker can only log the user name of the xanga's owner, not the visitor. This could...