The solution below no longer works. My current version of Firefox is 64.0.2
When did this problem start for you?
On Mac, Firefox 56 ratcheted up the security sandbox, lim… (funda kabanzi)
The solution below no longer works. My current version of Firefox is 64.0.2
When did this problem start for you?
On Mac, Firefox 56 ratcheted up the security sandbox, limiting which files pages can use on your system. This apparently prevents Firefox from using font files in a "suitcase" or "Adobe Type 1" format. The developers are aware of this and some fixes were made in Firefox 57, but they might have missed some font types or unexpected font file locations.
To see whether this is the problem, and as a temporary workaround, you can reduce the sandbox security level back to what it was in Firefox 52-55 as follows:
(1) In a new tab, type or paste about:config in the address bar and press Return. Click the button accepting the risk.
(2) In the search box above the list, type or paste sand and pause while the list is filtered
(3) Double-click the security.sandbox.content.level preference and change the value from 3 to 1 and click OK
That change won't take effect until the next time you quit and restart Firefox