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All font in youtube pages is not show normaly, why? I use Firefox in Ubuntu 18.04

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  • 1 has this problem
  • 7 views
  • Last reply by cor-el

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I'm use Firefox in Ubuntu 18.04. When I open youtube website, the font is not recognize by me. That is not my country font. I don't know what happen. When I check league that I use in google account, it is from my country and I try another browser like chromium, the font is appear normal. not only that, but also i try go to another website like Youtube for artists in firefox and the font is appear normal. So I think, maybe the problem is in the browser. Please answer my questions. I would prefer if firefox can be used to open youtube website correctly. Thank you.

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Screen shot of the error?

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Clear the Cache and remove the Cookies from websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"clear the Cache:

  • Options/Preferences -> Privacy & Security -> Cached Web Content: "Clear Now"

"Remove the Cookies" from websites that cause problems.

  • Options/Preferences -> Privacy & Security -> "Use custom settings for history" -> Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window