Image Search Options provides a set of highly customizable reverse image search context menu options.
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
TinEye is a reverse image search engine. The extension adds a context menu item so you can search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
Stops video autoplay and shows the preview thumbnail.
Download Video and Flash is a great download helper tool that lets you download Flash games and Flash videos (YouTube, Facebook, Dailymotion, Google Videos and more) very easily, with one click. The downloader is very easy to use to download videos.
Adds a download button to YouTube. By clicking on it you can download the video as a high quality mp3 file.
Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Untested (but should work) when: Video is in fullscreen, Video is in miniplayer.
Easy to use and powerful image downloader for your browser