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Firefox is not showing text, headings on social media and websites it shows "?" (Question Marks)

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  • آخرین پاسخ توسّط cor-el

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So on Facebook or Twitter and or any website it replaces all "Headers or Headlines with "?" (question Marks) as if it cant find the font...

So on Facebook or Twitter and or any website it replaces all "Headers or Headlines with "?" (question Marks) as if it cant find the font...

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cor-el
cor-el
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We have seen cases where a box with all '?' or all 'A' is displayed that might be related to using a Last Resort font that displays all the glyphs with one same character.

You can set this pref to 1 on the about:config page.

  • security.sandbox.content.level = 1
  • close and restart Firefox to make the change effective.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.