About this extension

this is a fork of vayan's external video that will run the mpv helper for vayan's external-video if you open a youtube video or twitch stream, but won't if you're actually looking at something else, all before the page itself opens. you should probably be using external-video instead of this.

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This add-on needs to:

Exchange messages with programs other than Firefox
Access browsing history
Access your data for sites in the twitch.tv domain
Access your data for sites in the youtube.com domain
Access your data for sites in the vimeo.com domain
Access your data for sites in the streamable.com domain
Access your data for sites in the liveleak.com domain
Access your data for sites in the vid.me domain
Access your data for sites in the funnyordie.com domain
Access your data for sites in the dailymotion.com domain

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