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Most web pages are now displaying squares with question marks! Installed Mac OS Catalina several days ago, but this just started yesterday. HELP!

  • 3 回覆
  • 1 有這個問題
  • 7 次檢視
  • 最近回覆由 cor-el

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Most web pages are now displaying squares with question marks! Installed Mac OS Catalina several days ago, but this just started yesterday. HELP! Attaching a screen shot

附加的畫面擷圖

所有回覆 (3)

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Is this with all websites/pages, some, a few?

Type about:preferences#content<enter> in the address bar. Across from fonts and colors, press the Advanced button. On the bottom, turn on Allow Web Sites To Choose Their Own.

Fonts Information - Detected via Flash http://browserspy.dk/fonts-flash.php?detail=1

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"Allow web sites to choose their own fonts" was already selected. Still having this issue.

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Are you using a Font manager that installs fonts in a non default location ?

This likely means that Firefox isn't able to access the requested font and falls back to a 'last resort' font that shows all glyphs as a '?' or an 'A'.

You can check for sandbox security issues when Firefox has a problem to access fonts installed locally.

You can set this pref to 2 or 1 on the about:config page to reduce the sandbox security level.

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

If '1' still doesn't have effect then try '0' to disable the sandbox.

If this didn't work then undo/reverse the change and reset the pref via the right-click context menu to the default value.

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.

See also: