SuperSmashBrowser is a very easy way to remove or deface content on the web if you feel so, just to release your frustration. It doesn't affect your privacy at all, and it doesn't require any permissions. It also doesn't mess with cookies.

The settings that you will see in the menu are:

Deface the page

With this option, you will remove the element or add a new one to the page.

Deface the content of the page

This option removes all the content of the page.

Smash your browser

This option allows you to hit the page five times and get it destroyed.

It is very easy and fun to use, you just have to click on the button and the rest is done for you.