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.

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

Having terrible problems on ALL computers in our office with fonts and newest firefox upgrade. Want to DOWNGRADE. How do I do this? It was fine before!!!

  • 4 svar
  • 3 har dette problemet
  • 3 views
  • Siste svar av Enigma

more options

All 5 of our computers don't work with new firefox version. 55.0.3 worked fine. All fonts are now screwed up on all computers, and we can't spend all day fixing font problems. We tried switching to helvetica, times, arial, etc. and nothing works. If we can't DOWNGRADE to earlier version, I think we'll be permanently deleting firefox and using chrome or safari for all our needs (which is too bad, since we've all have a preference for firefox the last few years.....but if the fonts won't ever work, we're moving on. Many thanks for any help from the community. Trying to upload an image of what we're seeing on all computers (nothing but A's on the whole screen). Won't load in your site. It's png screen shot, but not uploading.

All 5 of our computers don't work with new firefox version. 55.0.3 worked fine. All fonts are now screwed up on all computers, and we can't spend all day fixing font problems. We tried switching to helvetica, times, arial, etc. and nothing works. If we can't DOWNGRADE to earlier version, I think we'll be permanently deleting firefox and using chrome or safari for all our needs (which is too bad, since we've all have a preference for firefox the last few years.....but if the fonts won't ever work, we're moving on. Many thanks for any help from the community. Trying to upload an image of what we're seeing on all computers (nothing but A's on the whole screen). Won't load in your site. It's png screen shot, but not uploading.

All Replies (4)

more options

No idea but Firefox version 56 is the current version with a Update to version 56.0.1 later tonight/by tomorrow. fyi. May or may not fix the issue you are having. FYI: Firefox 57 (Quantum) will be major changes prob by or after Microsoft Fall Win 10 Update. http://mashable.com/2017/09/27/firefox-quantum-beta-launch/?utm_cid=hp-r-1#CBLwglkKsqqU

See if can get your versions to update further to ver 56.0.1 and report back as to problem persists or not.

more options

Over the past few weeks this is almost like an epidemic on Mac OS.

Would you try this :

Type in the address bar about:config (press Enter) Promise to be careful, if asked) Type and look for the preference : security.sandbox.content.level and set its value to 1 (one) (default value is 3 )

Everything back to normal or still no joy  ?

more options

OMG! That did it! We fixed all of our computers the same way. Going to reboot just to make sure, but so far so good. Thank you.

more options

C.Roberts said

OMG! That did it! We fixed all of our computers the same way. Going to reboot just to make sure, but so far so good. Thank you.


My pleasure - I'm glad everything's back to normal  !