If you’re worried about YouTube videos not switching to HD automatically, you will never mind if use YouTube HD extension for Google Chrome!
This Chrome extension switches your YouTube Videos directly to HD quality (if available) without you having to click on the button for it. For this the URL will be extended by the parameter hd=1. This happens before the loading of the page so it is not necessary to reload the site.

Due to the fact that you have not to switch to HD manually, the video plays without new buffering and waiting time. In addition the code is very small so it has no impact on your surfstyle and speed.

Features of YouTube HD:

1). 100% free

2). Never switch to HD manually again

3). No site reloading

4). Faster loading without new buffering

5). No annoying Icons on your Browser

6). Very fast due to slim code

Home page: http://youtubehd.oneted.de/

Add the extension YouTube HD for your Google Chrome here