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.

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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

How do I stop a recurring issue with fonts displaying incorrectly?

  • 3 àwọn èsì
  • 1 ní ìṣòro yìí
  • 13 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

more options

A while ago, I noticed that the fonts on some webpages all of a sudden turned thin and compressed, and many other fonts didn't display correctly. I tried all the usual stuff (restart the computer, clear the cache) and searched around with no solution, so I reset Firefox to its default settings.

This fixed it, but the issue returned later. It goes away every time I refresh Firefox (resetting it to its default settings), but seems to come back a week or so later. Lately, the time it takes for it to come back seems to be getting shorter. I refreshed Firefox last night, but it returned this morning. I refreshed again this morning and it came back this evening.

The problem is most noticeable on Facebook, which I've included some screenshots of. The top is how the fonts normally look, and the bottom is how they look once this problem occurs.

A while ago, I noticed that the fonts on some webpages all of a sudden turned thin and compressed, and many other fonts didn't display correctly. I tried all the usual stuff (restart the computer, clear the cache) and searched around with no solution, so I reset Firefox to its default settings. This fixed it, but the issue returned later. It goes away every time I refresh Firefox (resetting it to its default settings), but seems to come back a week or so later. Lately, the time it takes for it to come back seems to be getting shorter. I refreshed Firefox last night, but it returned this morning. I refreshed again this morning and it came back this evening. The problem is most noticeable on Facebook, which I've included some screenshots of. The top is how the fonts normally look, and the bottom is how they look once this problem occurs.

All Replies (3)

more options

I am guessing this isnt an issue with Firefox but a program on your computer that is automatically doing this. Have you seen the same issue on other browsers?

more options

You have two problems


Type about:preferences#content<enter> in the address bar. Across from fonts and colors, press the Advanced button. On the bottom, turn on Allow Web Sites To Choose Their Own.


https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

more options

You may have zoomed web page(s) by accident. Reset the page zoom on pages that cause problems.

  • View > Zoom > Reset (Ctrl/Command+0 (zero))

This can be a problem with the font that is used to display the text.

You can do a font test to see if you can identify corrupted font(s).

You can try different default fonts and temporarily disable website fonts to test the selected default font.

  • Tools > Options > Content : Fonts & Colors > Advanced
  • [ ] "Allow pages to choose their own fonts, instead of my selections above"