Install Stylish for Firefox, Thunderbird, Flock, Mozilla Suite, SeaMonkey, or Songbird. If you have Stylish already, make sure you're using the latest version and have JavaScript enabled.
You need Firefox to use this style. Get
,
then Install Stylish, then come back here to install this style.
- load into the Stylish extension where you can preview and save it.
- this style has been updated since you installed it in Stylish.
- Greasemonkey and Opera users can load this style as a user script.
Is this for hiding the videos from children or something? I don't see why you would hide all the embedded videos...'cause without videos, YouTube is rather boring ;)