We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Shortly after downloading a security update for Firefox, I started seeing strange encoding problems. Then Firefox started crashing all the time.

  • 2 replies
  • 2 have this problem
  • 2 views
  • Last reply by pishogue

more options

Crashed happened immediately after opening, even in Safe Mode. I downloaded the newest version of Firefox but that did not fix the problem. (Those early encoding problems I saw were bars on 7's, etc) Now I'm seeing encoding problems with Safari, which has now started to crash regularly on me. Need to finish a second thesis soon and this is very bad.

Crashed happened immediately after opening, even in Safe Mode. I downloaded the newest version of Firefox but that did not fix the problem. (Those early encoding problems I saw were bars on 7's, etc) Now I'm seeing encoding problems with Safari, which has now started to crash regularly on me. Need to finish a second thesis soon and this is very bad.

Chosen solution

You can do a check for corrupted and duplicate fonts and other font issues:

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

You can do a check for corrupted and duplicate fonts and other font issues:

more options

Followed your advice: used FontBook's option to "resolve duplicates" and cleared all my font caches with FontNuke, and everything's working fine now. Thank you so much!

Modified by pishogue