Rip (Remove it Permanently)

A few weeks ago I installed this extension for Firefox that allows me to remove elements from webpages and have them be removed whenever I some and visit the site again. the plugin is called “Rip (Remove it Permanently)” and works quite well. It can remove just about any element on a website (say the damn skyscraper banner ad on the right of a page) as well as remove images you wouldnt wont to be shown while at work. Say like you have a favorite website that has funny videos on it that you visit, but they also have weird porn banners and maybe a nakked chick for their header graphic. Or there is some HUGE text that says bad words on it. You still wanna go and visit the site while at work, but you dont want the obsenity to show up on your screen. What you do is right click the offending element and tell it to RIP. Later if you want to re enable that element you can by clicking the tombstone on the bottom right of the browser.
http://rip.mozdev.org/