words are replaced by alpha Boxes so I can't read text on facebook and some websites
see screenshot, this appears on Facebook & Some websites, not all
Only 1 of my 3 computers has this problem ( so far ), thought font issue so turned off all System fonts & re-activated but no luck
I'm on mac OSX Yosemite 10.10.5, run firefox 60.0.2 ( it's up to date )
Help please Thanks Craig
Solution choisie
This can happen when Firefox has a problem to access locally installed fonts because of sandbox security issues. https://wiki.mozilla.org/Security/Sandbox
You can set this pref to 2 or 1 on the about:config page to lower the sandbox security setting.
security.sandbox.content.level = 1
Close and restart Firefox to make the change effective.
If '1' still doesn't have an 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.
Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar.
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Solution choisie
This can happen when Firefox has a problem to access locally installed fonts because of sandbox security issues. https://wiki.mozilla.org/Security/Sandbox
You can set this pref to 2 or 1 on the about:config page to lower the sandbox security setting.
security.sandbox.content.level = 1
Close and restart Firefox to make the change effective.
If '1' still doesn't have an 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.
Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar.
thank you very much, took me a while to find where & what but did it, stoked!!!! thanks, Craig
This problem is supposed to be fixed on Mac OS X 10.11 and earlier with Firefox 60.0.2 according to the Release Notes.
What font manager are you using?
See comment 44:
- bug 1460917#c44 - Fonts not displaying with OS X 10.11 and Earlier with Font Managers
CraigDawick said
took me a while to find where & what but did it, stoked!!!!
thanks, Craig
Glad to help. Safe Surfing.