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What value of about: config of firefox should I modify to slow or decrease the video playback and sounds?
I need to watch videos or listen to music faster and I know that mozilla can make modifications like sound and others, but I need to modify the option that has in about.config and not have to modify it every time with the right control increase or decrease speed. I know mozila is customizable and can do everything. I have the latest version of mozilla and use windows 10