Works great on Firefox, so much so that I decided to add it to Chrome. Unfortunately, the settings do not save. We'll just have to wait for a hotfix. Still, I have to say thanks for making such a straightforward interface. I know of another extension that is similar but is completely bloated, and features not-so-subtle pop-ups every time it updates. Luckily this extension isn't that! It's just a simple drop-down list of customizable enhancements. Thanks!
This plugin falls under the 'Browser Tools' category and the subcategories 'Video Enhancement' and 'Browser Extension'
It enhances the user's video experience on YouTube by enabling HD playback, automatic video player size adjustment, annotation control, and sound management
It also extends its functionality to other external sites like Twitter, Reddit, and Facebook