Rated 5 out of 5 stars
how can one disable the about:new tab crap? why is firefox going so downhill with all those unnecessary changes? (thanks alejandro!)This review is for a previous version of the add-on (220.127.116.11-signed).
Well...you simply can click the square icon in the top right of the page. Customize about:newtab will still work.
Also, you can use the add-on "Custom new tab" to change it: https://addons.mozilla.org/es-ES/firefox/addon/custom-new-tab/