Obviously Opera users are now overjoyed and over the moon with the evolve of extensions for Opera. Opera is equivalent to Google Chrome in all aspects as speed and supporting modern web standards and technologies considered but Opera lacked extensions support, now once Opera 11 final is out Opera will be fully featured browser with extensions support and speed. If you use both Chrome and Opera Chrome’s turn off lights similar extension now available as Focus On Videos Opera extension.
Focus on Videos allows to watch YouTube videos with dark background. Once Focus on Videos extension is installed for Opera, it automatically detects starts of video playback in YouTube and makes the background dark which make user to experience of viewing like movie in theaters.
Focus On Videos Opera extension