How to dynamically edit a website content on your browser

I was scrolling through a blog and found this cool tip, it lets you edit a webpage online in browser (I tested on Internet Explorer but I think this works with Firefox and Opera as well). Its very useful when you
want to comment/note a webpage and store it for future. You can also edit the website and take a screenshot of it. Here are the steps:

1. Open any website (eg.,
2. Enter this line in the URL of the browser:
document.designMode='on'; void 0
3. Go ahead and edit the website!

See this blog to know more about this idea and various comments on it.