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Firefox on MAC / UTF-8

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

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I've a problem with Firefox 84.0.2 on my new macOS Big Sur. all UTF-8 text on a website (standard-text, button-info, ...) are displayed incorrectly

the menu (view/textencoding) option is disabled

is there anybody who can help me understand and solve the problem

what I did so far: deinstall an reinstall the browser - did not solve the problem

kind regards, ingo

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This is not an encoding issue, but an issue with the requested font that isn't working for some reason.

This can happen if the font that is requested is corrupted or otherwise can't be accessed, possibly because the font is under control of a third-party font manager and is located in a non standard location. If Firefox isn't able to access the requested font then it falls back to a 'last resort' font that shows all glyphs as a '?' or an 'A'.


You can right-click and select "Inspect Element" to open the builtin Inspector with this element selected.

You can check in the Rules tab in the right panel in the Inspector what font-family is used for selected text. You can check in the Font tab in the right panel in the Inspector what font is actually used because Firefox might be using a different font than specified by the website.

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