Like the default Firefox theme, but find it to be a little too colorful for its own good?  Then you might want to check out the Firefox theme – MonoChrome.  It brings Firefox back to basics with everything turned black and white and grey all over.

MonoChrome, simply put – is a monochrome version of the default Windows theme for Firefox 3.6, otherwise known as the "Strata" theme. To the theme creator’s credit, he has done a fantastic job at re-themeing this creative take on the default Firefox theme – and it shows. 

The goal here is to create a lightweight, aesthetically pleasing theme – and MonoChrome does it.

You can pick up MonoChrome from the Firefox Add-ons website.

Here is a screenshot of this awesome monochrome flavored theme:

You could definitely say this theme was offbeat and a ‘bit different for sure.  You can pick up the Rein theme for Firefox 3 and up over at the Firefox Add-ons web site.  Also, when your there scroll down to the “advanced details” section for a few more tweaks of your own you can add to this elegant skin for Firefox.