http://goo.gl/tKx7X2 Turn Off the Lights add-on

Turn Off the Lights 

The entire page will be fading to dark, so you can watch the video as if you were in the cinema.

With one click on the lamp button, the page will be fading to dark. And automatic focus to the video. Click again, the page will return back as normal.

Few great features in this Firefox addon:
✓ Turn the lights back on, by clicking on it
✓ Support multiple video sites: YouTube™, HTML5 video,... and more
✓ Customize your YouTube™: Auto HD, Auto Wide,... and more
✓ Easter Eggs:
Shortcut key: T -> Do you like a real movie theater?
✓ Option to make the screen dark if the user click on the play button
✓ Option to turn on/off the fade in and fade out effects
✓ Custom colors
✓ Option Flash Detection
✓ Option Show Dimness Level Bar
✓ Option Eye Protection for when it's night
✓ Option atmosphere lighting
✓ Option to show the dark layer on the top of the window
✓ Option shortcut keys:
Ctrl + Shift + L to do the lights on/off
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 + ↑ to increase the opacity
Alt + ↓ to decrease the opacity
Alt + * do the lights on/off on all open tabs
✓ Option to place the Night Mode toggle switch
✓ and more...

Download Now

http://goo.gl/tKx7X2

http://goo.gl/tKx7X2