greasemonkey

I installed greasemonkey extension to firefox long ago but never tried to understand what it is for? though i read that it is very powerful and easy, i found that for the first time today, when i could change the stylesheet of google homepage by installing scripts and enabling greasemonkey... there are many greasemonkey user scripts scattered around the net... with such, you can also disable google ads on website, sometimes very annoying... so you are changing the way the website looks in your firefox browser... the whole concept is amazing... bless greasemonkey...