This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

I'm getting missing fonts (Blackboxes) on MapboxGl on FireFox v64.0 using Mac only (PC works fine)

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

DanTrafficcast
DanTrafficcast
more options

So I loaded up a clients web page on a mac using the most current release of Firefox v64 and the mapbox that is being used on that page does not display any fonts correctly. Everything looks fine if you access the website using a PC and using Firefox v64 and if you go to a previous version of Firefox v63.3 on a Mac the map also displays completely fine.

I don't know if anyone has experience this or has any insight on what might be the issue. If you want to look at the working site click here: https://www.fox4news.com/traffic

If you need any more information please let me know.

So I loaded up a clients web page on a mac using the most current release of Firefox v64 and the mapbox that is being used on that page does not display any fonts correctly. Everything looks fine if you access the website using a PC and using Firefox v64 and if you go to a previous version of Firefox v63.3 on a Mac the map also displays completely fine. I don't know if anyone has experience this or has any insight on what might be the issue. If you want to look at the working site click here: https://www.fox4news.com/traffic If you need any more information please let me know.
Attached screenshots

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

I think that this page uses WebGL.

You can check the graphics section "Help -> Troubleshooting Information" (about:support) page for messages about WebGL.

You can also check the Web Console, but I do see a lot of warnings, so this might not easy.