YouTube High Definition is a powerful Chrome extension developed by Baris Derin. This free extension is specifically designed to enhance your video watching experience on YouTube and other external sites like Twitter, Reddit, and Facebook. With YouTube High Definition, you can enjoy all videos in high definition, automatically play videos in HD, and even change the video player size to fit your preferences.

One of the standout features of this extension is the ability to turn off annotations, providing a clean and distraction-free viewing experience. Additionally, YouTube High Definition allows you to automatically stop videos, saving you from the hassle of manually pausing them. You also have the option to auto mute video sound, perfect for situations when you want to watch videos without audio.

Moreover, YouTube High Definition extends its HD support to all other YouTube videos on external sites, ensuring a consistent high-quality viewing experience across different platforms. Whether you're watching videos on YouTube itself or on other websites, this extension ensures that you can enjoy them in the best possible quality.

In conclusion, YouTube High Definition is an impressive Chrome extension that enhances your video watching experience. With its ability to play videos in HD, change video player size, turn off annotations, and more, it provides a range of features to cater to your preferences. Whether you're a casual YouTube viewer or a frequent video watcher, this extension is a valuable addition to your browsing arsenal.