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Extensions 
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Download YouTube Sleep Timer chrome extension. A video play/pause timer for Youtube! Also serves as a sleep timer :) and install in your Google chrome browser. This is Direct YouTube Sleep Timer Crx download for Chrome it is also called YouTube Sleep Timer offline CRX for chrome Download. This YouTube Sleep Timer is used to A video play/pause timer for Youtube! Also serves as a sleep timer :)
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Sleep Mode will temporarily put all tabs to sleep mode for saving RAM memory, saving battery and make your computer/laptop faster.
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A sleep timer for streaming web services.
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Prevent procrastination by setting a daily time limit for your YouTube usage.
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Pauses all playing YouTube videos.
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A Chromium Extension that allows you to set a timer that counts down and then closes the tab.
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Put any tab on a sleep timer to close or mute the tab when the timer expires.
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Closes the tab after specified time!
