I have a problem on my laptop when I try to view videos on Facebook. Whenever I click on a video to start it, iframe expands but not enough to cater the video and scroll bars appear.
There is a way to fix it by changing HTML i.e. by adding scrolling="no" to the iframe element. I tried it with FireBug and it works great, the problem is, of course, the fact that it isn't permanent. That's why I tried a Stylish addon for Firefox but I believe it can only change CSS of a page.
Is there any other addon that can automatically add a scrolling parameter to every iframe on facebook page?