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

Font Displaying Incorrectly

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by Cheryl823

more options

Recently, (I want to say in version 35 and forward) my font on any webpages opened in Firefox looks horrible! Its unreadable in some cases, and rendering incorrectly in others. The letters are fuzzy, or seem to be missing parts. I've tried zooming in and out, no change. I've tried changing font settings, turning off hardware acceleration, all the solutions I could find on my own. I've also upgraded to the latest version.

When I open the same web pages in IE, they look fine. Text also looks fine in other applications such as Word, etc., so the issue must be Firefox unfortunately.

I've attempted a screenshot, but its hard to see unfortunately. Not a good upload quality. The bolded letters seem to have extra pixels giving them a fuzzy look. The regular font letters seem to be missing pixels, such as the horizontal part of a lower case "e" making it hard to tell what the letter is.

Hopefully someone knows what I'm talking about.

Any ideas? I love using FF and detest IE, but this is really hard on my eyes. :(

Recently, (I want to say in version 35 and forward) my font on any webpages opened in Firefox looks horrible! Its unreadable in some cases, and rendering incorrectly in others. The letters are fuzzy, or seem to be missing parts. I've tried zooming in and out, no change. I've tried changing font settings, turning off hardware acceleration, all the solutions I could find on my own. I've also upgraded to the latest version. When I open the same web pages in IE, they look fine. Text also looks fine in other applications such as Word, etc., so the issue must be Firefox unfortunately. I've attempted a screenshot, but its hard to see unfortunately. Not a good upload quality. The bolded letters seem to have extra pixels giving them a fuzzy look. The regular font letters seem to be missing pixels, such as the horizontal part of a lower case "e" making it hard to tell what the letter is. Hopefully someone knows what I'm talking about. Any ideas? I love using FF and detest IE, but this is really hard on my eyes. :(
Attached screenshots

Modified by Cheryl823

Chosen solution

There have been issues reported on Windows Vista with the kb3013455 update from Microsoft. Microsoft has released an update to address these issues. MS15-010: Description of the security update for Windows kernel mode driver: February 10, 2015:

Fix for text quality degradation after security update 3013455 (MS15-010) is installed:

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

There have been issues reported on Windows Vista with the kb3013455 update from Microsoft. Microsoft has released an update to address these issues. MS15-010: Description of the security update for Windows kernel mode driver: February 10, 2015:

Fix for text quality degradation after security update 3013455 (MS15-010) is installed:

more options

That did it! Since IE was working a Microsoft update didn't even occur to me.

Thank you so much! :)