Want to know exactly how you are making use of the Firefox web browser? Here are six of the best add-ons for Firefox that will give you every statistic you would ever want from your own day to day usage. From cache, to download usage, and even easy cache status – we have something here for everybody to make use of.
Net Usage Item – Displays a progress bar of your Internet usage (grabbed from your ISP) on your Firefox Toolbar.
Usage Counter – Tells you how much time you have spent using Firefox and browsing sites.
StatusbarEx – Show some useful information on status bar of Firefox, such as the memory usage of system & Firefox itself, network speed, system power status, etc.
Minimeter – Monitor your provider’s upload/download usage meter.
DataFox – Check your BSNL DataOne and MTNL Triband bandwidth utilization in Firefox at the click of a button. A color coded progress bar and bandwidth usage tracking helps you stay within your monthly cap and efficiently utilize your bandwidth.
Cache Status – Easy cache status & management from the status bar.
Know of another favorite usage add-on that didn’t make it to the list? Be sure to leave your suggestions in the comments!

Worried somebody is going to snoop around on what you are doing from within Firefox? Have no fear! Although private browsing hasn’t made its way to Firefox yet, you can still clear your private data in Firefox very easily.
Knowing that by the time I get there, the page will probably have already been dugg to death or viewed by so many people on reddit, del.icio.us and others that I won’t be able to view it, I often give up. Firefox gives us a few more chances to bring that popular web site back up from the dead.
Trying to browse through your old saved browser history can be a pain in Firefox in comparison with Internet Explorer. 