I have tried most scripts out there & was using VidzBigger for sometime until i got really sick of its flakiness, i found YouTube Enhancer & found it to be rock solid.

I finally switched to YouTube Enhancer & would not look back, rock solid & love it. Dont waste your time: get YouTube Enhancer

PS. thanks to the writer: GIJoe

Have been trying to find a decent userscript for Youtube for a long time - primarily to customize my experience on YouTube to my liking, and this one is the best you have out there. Excellent work - great set of options.

I love this script... with this script I can use youtube according to my ideas!

the programmer of the script has made a great work, since I'm using it makes I have much more fun using YouTube :)

awesome functions, unlimited possibilities...

many features of this script are really useful and you can use it as good as ever

This script is unbelievable!

I used to use YousableTubeFix but it stopped getting updated and no longer works well with YouTube as it is today. Took me some time until I found this one, which has as much or more functionality as YousableTubeFix.
I actually use it to get minimal quality as I live far out in the forest in Sweden and the DSL/phoneline goes down very often so I have to rely on a GSM/3G modem which never goes over 100 kb/s and has a monthly 6 GB downstream cap. I mostly use it for speeches and debate videos anyway and then the quality doesn't really matter anyway. It's nice to be able to easily set it to max quality for watching music videos, and with my low speeds, the capability of buffer settings are essential. So it really has all the YouTube settings I could ever think of, and many I would never think of.
The one complaint I have is that it doesn't run on Midori browser, but that is probably Midori's fault since most scripts don't seem to work on it.
I would gladly add a Swedish translation to this script if it's ok. I have done software translation before (mostly Firefox Addons) and I am aware of the standard software terminology for Swedish.
Thank you for a great script.

Tested with the newest Google chrome. Didn't seem to work on my machine. Just letting you and the rest know about it.. It was working fine before the new version (the one which can translate pages) Hope to see a fix!

very beautifull code,.
keep update with good stuff, sir.

permission to use some routines for other purpose :D

I changed it to "0". Hope it stops from showing the update notice EVERY day.

Beside a very good new looking for youtube. Now you can search video while keep watching your video. Great!

This script is just great. It has so very many features, any of which can be enabled or disabled so you can customize it to do exactly what you want it to. The support is great as well and it's constantly being updated and improved.