There is a very easy way to change youtube video quality without using a plugin, extension or other third party software but by changing youtube default settings (either for all your youtube videos or for the video you are currently watching). By default youtube will automatically select the video quality they believe is best for your viewing by taking into account: your internet connection speed, the size of the video player and the available format they have for each video. Nevertheless you can change it by using youtube settings or video player …
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