This collection is the easiest way to add all extensions from http://beerpla.net/2009/06/10/essential-firefox-extensions-plugins-add-ons-a-comprehensive-guide-part-2-pragmatic-extensions/
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.
With gTranslate you can translate any text in a webpage just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text.
This extension allows you to execute common commands using mouse gestures, rocker navigation, scroll wheel navigation and page...
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
Show the IP address(es) of the current page in the status bar. It also allows querying custom information services by IP (right click) and hostname (left click), like whois, netcraft, etc. Additionally you can copy the IP address to the clipboard.
Display the Google PageRank, Alexa rank, Compete ranking and SEOmoz Linkscape mozRank anywhere in your browser, along with fast keyword density analyser, keyword/nofollow highlighting, backward/related links, canonical links, WHOIS, robots and more.
OpenDownload² extends the "Save" dialog by a "Run" button to open the file directly.
It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page.
A very simple extension to remove all the cookies of currently opened site. It adds an option to the Right Click menu of the page, and a Clear Cookies Button to perform this operation. It displays the status of operation in the status bar.
Displays your current IP address. If you have a static IP (Internet Protocol) address, this number will stay the same each time you visit. If you have a dynamic IP, the number will change each time you log on to the internet (or your ISP assigns a...
TryAgain keeps trying to load a webpage when the server cannot be reached.
Ever needed to restart Firefox after enabling or disabling an extension, switching to a new theme, or modifying configuration files (such as userChrome.css or user.js)?
This simple extension adds a "Restart Firefox" item to the "File" menu. You can ...