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!

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

letters disappeared

  • 4 ŋuɖoɖowo
  • 2 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ PeteZaSayari

more options

Firefox quantum 57.0 (64 bit) for linux mint Linux Mint 18 64 bit Kernel 4.4.0-21 generic AMD Athlon 5370 APU with Radeon R3 x 4

On some web sites all letters disappear. This didn't happen with the previous versions of firefox. The 2 screenshots were taken two minutes ago. 1) ff01.png: xml.com 2) ff02.png: github.com.

Regards

Firefox quantum 57.0 (64 bit) for linux mint Linux Mint 18 64 bit Kernel 4.4.0-21 generic AMD Athlon 5370 APU with Radeon R3 x 4 On some web sites all letters disappear. This didn't happen with the previous versions of firefox. The 2 screenshots were taken two minutes ago. 1) ff01.png: xml.com 2) ff02.png: github.com. Regards

Ŋuɖoɖo si wotia

The culprit seems to be some kind of new sandboxing in 57 which prevents fonts from loading.

  • Open a new tab and type about:config in the address field (press enter, accept risks, etc., etc.)
  • Type “sandbox” in the search box
  • Change the setting security.sandbox.content.level to 2
  • Restart Firefox

If that doesn’t work you could try changing it to 1.

If this solved your problem, mark as solution.

Xle ŋuɖoɖo sia le goya me 👍 1

All Replies (4)

more options

Couldn't upload images. Now I retry with smaller ones.

more options

No progress with firefox 57.0.1 Here are a bunch of screenshots taken with the updated browser:

  1. Coverpages
  2. Silmaril
  3. Sourceforge

Please, let me know if there is a way to solve the problem.

Regards.

more options

Ɖɔɖɔɖo si wotia

The culprit seems to be some kind of new sandboxing in 57 which prevents fonts from loading.

  • Open a new tab and type about:config in the address field (press enter, accept risks, etc., etc.)
  • Type “sandbox” in the search box
  • Change the setting security.sandbox.content.level to 2
  • Restart Firefox

If that doesn’t work you could try changing it to 1.

If this solved your problem, mark as solution.

Mkll trɔe

more options

Mkll said

...
  • Change the setting security.sandbox.content.level to 2
...

security.sandbox.content.level was 3, now it's 2 and it works.

Many thanks.