Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Custom Font

  • 3 replies
  • 2 have this problem
  • 10 views
  • Last reply by cor-el

stalfnzo
stalfnzo
more options

For the last several years I have had Firefox configured to display all website fonts in my custom font, Dyslexie. As of upgrading to v119 yesterday, I have lost this function; all websites now display their native fonts. I still have Firefox Settings Default Font set to Dyslexie, but it no longer works. Any help would be appreciated.

For the last several years I have had Firefox configured to display all website fonts in my custom font, Dyslexie. As of upgrading to v119 yesterday, I have lost this function; all websites now display their native fonts. I still have Firefox Settings Default Font set to Dyslexie, but it no longer works. Any help would be appreciated.

All Replies (3)

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

In Firefox 119 Fingerprinting protection has been added to Enhanced Tracking Protection in Strict/Custom mode (Suspected fingerprinters) what affects accessing local fonts.

To include user installed fonts:

zeroknight
zeroknight
more options

cor-el said
To include user installed fonts: layout.css.font-visibility => 3

Fingerprinting protection overrides that setting (3 is the default) unless privacy.fingerprintingProtection.overrides is set to -FontVisibilityBaseSystem,-FontVisibilityLangPack in about:config.

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

See also UpdateFontVisibility: