With a single click on the lamp button, the page will fade to dark. And automatically focus on the video. By clicking on it again, the page will return to normal. https://www.turnoffthelights.com

Turn Off the Lights is a lightweight and useful add-in designed for a more comfortable watching experience. It works for all known video sites such as YouTube, Vimeo, Dailymotion, Hulu, Metacafe, YouKu, etc. Not only this but these extensions are compatible with Google Chrome™, Apple Safari™, Mozilla Firefox™, Opera™, Internet Explorer™, Maxthon™ and Yandex™ web browsers.

A few great features in this browser extension:
✓ Turn the lights back on, by clicking on it
✓ Support multiple video sites: YouTube™, HTML5 video,... and more
✓ Customize your YouTube™: 
     Auto HD: Set videos to play in HD automatically. Users can select from highres > 1080p > 720p > 480p > 360p > 240p > 144p > default
     Auto Wide: Automatically plays the video on the widest mode
     ,... and more
✓ Easter Eggs:
     Shortcut key: T -> Do you like a real movie theater feeling?
✓ Option to make the screen dark when the user clicks on the play button
✓ Option to turn on/off the fade in and fade out effects
✓ Custom colors
✓ Option to Flash Detection
✓ Option to Show Dimness Level Bar
✓ Option Eye Protection for when it's night. And with whitelist/blacklist filter
✓ Option atmosphere lighting that shows a glow around the video player
✓ Option to show the dark layer on the top of the window
✓ Options to shortcut keys:
     Ctrl + Shift + L to toggle the lights
     Alt + F8 to restore the default opacity value
     Alt + F9 to save the current opacity value
     Alt + F10 to enable/disable the Eye Protection feature
     Alt + (arrow up) to increase the opacity
     Alt + (arrow down) to decrease the opacity
     Alt + * to toggle the lights on all open tabs
✓ Option Camera Motion
✓ Option Speech Recognition
✓ Option to place the Night Mode switch to toggle YouTube™ in black or white theme. And with whitelist/blacklist filter
     Time stamp: Activate the Night Mode within the chosen time
     Blackout: Dims the web page and activates the Night Mode
✓ Option to stop YouTube™ and HTML5 videos from automatically playing.
✓ and more...

Don't forget to like & Follow Us:
     Facebook
     http://www.facebook.com/turnofflights

     Google+
     https://plus.google.com/+turnoffthelights/posts

     Twitter
     https://twitter.com/TurnOfftheLight

     Pinterest
     http://www.pinterest.com/turnoffthelight

     Instagram
     http://www.instagram.com/turnoffthelights

     YouTube
     http://www.youtube.com/c/turnoffthelights

Feel free to contact us if there is any problem or suggestion.
Note: YouTube is a trademark of Google Inc. Use of this trademark is subject to Google Permissions.