If you’re a control-geek and you want to totally nerd-out FireFox, then I thoroughly recommend this add-on: It shows extra information on the status-bar of FireFox; such as FireFox’s memory usage, total installed RAM, network speed, upload/download to FireFox… Rabbit, rabbit, yap-yap, rabbit rabbit, bunny… Here; take a look at the options panel and see for yourself:-

As you can see, you can fully-customise the function of this add-on, from what it displays right down to the colour of the text it displays it in. – Of course being a FireFox add-on it’s freeware and fully Open-Source just as you’d expect; so you can code away at it to your heart’s content if you want to fully-personalise it.

Unfortunately there’s only a Windows version currently – But as it’s Open Source, if you have the ability, you might like to create one for Mac and for Linux.

Here’s what it’s showing on my computer with the above settings applied:-

How To Get Yours

Direct your browser to

https://add-ons.Mozilla.org/en-US/firefox/addon/3271

That’s all.