Edit Any Webpage on the Internet From Your Browser

Here's a fun Javascript hack that allows you to edit any webpage on the internet right from your browser. It doesn't make permanent changes to the page. So this isn't real "hacking". But, it's still a good way to fool friends.

It's real easy. All you have to do is:
1) Visit the page you want to change
2) Clear the current web address from your browser address bar at the top then add "javascript:document.body.contentEditable='true'; document.designMode='on'; void 0" and click Go. (do not use the double quotes, just what's inside the double quotes)
3) Click on the page where you want to edit and start typing away.

See the screenshot for an example of how it works.