FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.Along with transferring your files quickly and efficiently, FireFTP also includes more advanced features such as: directory comparison, syncing directories while navigating, SFTP, SSL encryption, search/filtering, integrity checks, remote editing, drag & drop, file h

The fact that FireFTP only currently links (easily) to the FireFTP version designed for Firefox 3.5 leads me to believe that they don't really have Ubuntu in mind in the same way they do Windows and Mac OS X users.

Boasting over 6,800,000 downloads and counting, this add-on creates a full featured FTP client within Firefox that rivals standalone applications such as Filezilla or SmartFTP. This add-on is maintained regularly, with a few critical bug fixes released just last week.

If you spend most of your computing life in Firefox, it makes sense to consolidate other online activities in your browser. There are extensions that can help you to do just that: you can manage your bookmarks with the del.icio.us extension, chat on IRC channels using Chatzilla, and read RSS feeds in Sage.

FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!, if you are for example under windows and you want to use ssh, the firesshbest is to install this firefox extension.

"There has been some discussion about shipping it with Firefox 3, but I think that has been put behind in favor of an extension to Firefox so we can follow our own timeline. Luckily, FF3 has a new neat feature that allow you to pass the -app parameter to run a xul application. Nifty..."

Nowadays, Web browsers can act as front ends to many other kinds of applications. For instance, if you want to browse and open the files on your hard drive from within Firefox, turn to the Firefly extension.

Installing these Firefox extensions, like installing any other Firefox extension, is just a matter of clicking the shiny green Install Now button from the extensions' homepages. You'll find both the extensions enabled after a browser restart to complete the installation.

At first sight, the Read It Later (RIL) extension looks redundant -- after all, you can use Firefox's own bookmarking functionality to save Web pages for later reading. But dig deeper, and you'll discover that it offers enough nifty features to make it a must-have tool for most users.