Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Typing wrong letters pop up

  • 2 replies
  • 0 have this problem
  • 2 views
  • Last reply by zeroknight

more options

Hello- I am having a very strange thing when using Firefox. I type and certain letters pop that I have not typed. It is different letters that are affected. it has been the E a number 2 shows instead s a m shows instead. There have been others but I did not make note, My solution is to close firefox and reopen. I have updated to newest version. Do you know why this is happening and a better solution. Also when I go to Chrome the letters do not transpose. HElp Stephana

Hello- I am having a very strange thing when using Firefox. I type and certain letters pop that I have not typed. It is different letters that are affected. it has been the E a number 2 shows instead s a m shows instead. There have been others but I did not make note, My solution is to close firefox and reopen. I have updated to newest version. Do you know why this is happening and a better solution. Also when I go to Chrome the letters do not transpose. HElp Stephana

All Replies (2)

more options

Can you attach a screenshot?

Make sure you allow pages to choose their own fonts as this affects iconic fonts.

  • Settings -> General -> Language and Appearance -> Fonts -> Advanced
    [X] "Allow pages to choose their own fonts, instead of your selections above"
more options

Try disabling any third-party antivirus or security software.

Does it still happen in Troubleshoot Mode?