YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
Capture, Reverse Image Search is a powerful capturing reverse image search tool built on top of TinEye engine.
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
Image Search Options provides a set of highly customizable reverse image search context menu options.
Best adblock for YouTube, faster and lighter than other ad blockers. It automatically hides all kind of YouTube ads (YouTube banner ads and YouTube video ads).
瞬间过滤B站(bilibili.com)刷屏的相似弹幕，还你清爽的弹幕视频体验。 *a tweak for a Chinese website. Please ignore this add-on if you are not a user of bilibili.com.*
Tons of features to improve your user experience on YouTube™.
Stops video autoplay and shows the preview thumbnail.
Download any video from YouTube to your favorite format.
2018 updated downlaod helper for YouTube. Download any video from YouTube to MP3, MP4, WEBM, M4A or 3GP. Subtitles and thumbnails also available for download with a single mouse click!
Download YouTube video as Mp3 right from YouTube with one click! On-page plugin to download from YouTube to Mp3! 1) Convert video from YouTube to Mp3. 2) Download Mp3.
This extension add a download button on any Youtube page and allows you to download MP3 & Video with just one click.