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.

ابحث في الدعم

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

why firefox show the helvetica font very thick not like it recognize it as chrome?

  • 2 (ردّان اثنان)
  • 2 have this problem
  • 12 views
  • آخر ردّ كتبه cor-el

more options

many websites are using bootstrap, by default the font is Helvetica. Why Firefox can't recognize it or show it smooth and nice like as chrome, instead it shows a thick font which aren't fun to read. This is not since today, it's since bootstrap came out and this is really annoying.

many websites are using bootstrap, by default the font is Helvetica. Why Firefox can't recognize it or show it smooth and nice like as chrome, instead it shows a thick font which aren't fun to read. This is not since today, it's since bootstrap came out and this is really annoying.

All Replies (2)

more options

Does this also happen based on the fonts that are installed on the local computer?

more options

It is possible that the font is corrupted and that Firefox is using a different font instead.

You can right-click on a web page and select "Inspect Element" to open the Inspector (Firefox/Tools > Web Developer). You can check the font used for selected text in the Font tab in the right pane of the Inspector.


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"