Select some text, right-click and choose"Search image" in the menu, a Google Image tab will open with your results.
Dark YouTube theme - apply Black Youtube & Facebook Skin. Dark YouTube theme protects eyes by changing Youtube & FB colors to black
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
WORKS WITH NEW YOUTUBE LAYOUT, "Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.
Tons of features to improve your user experience on YouTube™.
Stops video autoplay and shows the preview thumbnail.
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.
Make view image button great again. This web extension adds "View Image" button to Google Image Search results.
Open and download links in IDM (Internet Download Manager) easily
Vid to Mp3 is fast Firefox Addon for Downloading Youtube Videos and Convert to Mp3/Mp4/AVI/3GP and other audio/video format.
Just One Click to download any video from Youtube. Support new Firefox Quantum 57