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My Firefox on Galaxy S4 won't play YouTube videos,why?

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I'm using Firefox, the best mobile browser because I have Ublock Origin. Updated version of course. With or without addons, Firefox won't play YouTube video, stuck on loading. On other browsers, YouTube play fast but with ads everywhere. Same problem of YouTube videos don't working found on Firefox based browsers like Adblock browser, tor Browser.

I'm using Firefox, the best mobile browser because I have Ublock Origin. Updated version of course. With or without addons, Firefox won't play YouTube video, stuck on loading. On other browsers, YouTube play fast but with ads everywhere. Same problem of YouTube videos don't working found on Firefox based browsers like Adblock browser, tor Browser.

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Hi

I think that I know what might be causing this.

  1. Open the Android Settings app (typically a cogwheel icon)
  2. Select Applications
  3. Find Firefox for Android and select Clear Cache (not Clear Data!)

You may need to reboot your phone, but this should help resolve this issue.

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I'm tried that without results.