Play Runescape without advert, remove it

If you are  a big fan of Runescape , and you want to play Runescape without advert with a web browser,  you can fastly remove it with Mozilla Firefox, or with another web browser.

I'll show how to do it with Mozilla Firefox.

1. Open Runescape game: http://runescape.com/game.ws
2. Push right button of mouse on the right or left corner of advert, and select "Inspect Element (Q)";
3. And you should see a blue line, click on this line with right button of mouse and select "Delete Node";
4. That's all, to close  Developer tools click on the right corner "X";