I made the mistake of clicking a YouTube link via Twitter and now Youtube is convinced my Firefox on my desktop PC is a mobile device. Every tip I see tells me to "just request the desktop version of the site!"; only, that's ONLY a feature in the mobile Firefox app... which I'm NOT using. Every time I go to Youtube's home page: it starts me scrolled down as though it's trying to display on a portrait-mode screen, and only shows 3 videos per row. It's clearly trying to display on a mobile device. If I hold down F5, and force it to refresh for a dozen or so times, for a split second it will display properly before re-setting to mobile mode. Things I've already done so don't suggest them: - Force refresh teh page - Alreadyd one, didn't work - Clear Website cookies & site data - Already done, didn't work - Restart Firefox - Already done, didn't work - Clear browser cache - Already done, didn't work - Open new private window - Already done, didn't work - Restart Firefox in safe mode - Already done, didn't work - Restore default Firefox theme - Already done, didn't work The problem apepars to be that Youtube has just reclassified my browser/device as mobile and there's nothing I can do to change it.