We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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 does firefox 39 randomly opens while i am on another app

  • 1 (رد واحد)
  • 1 has this problem
  • 10 views
  • آخر ردّ كتبه guigs

more options

After an upgrade to Firefox 39, it will just randomly open by its self. It opens to websites but not my homepage. I have Norton and ran scan for malware and also ran a scan on Malwarebytes software. Nothing but cookies detected

After an upgrade to Firefox 39, it will just randomly open by its self. It opens to websites but not my homepage. I have Norton and ran scan for malware and also ran a scan on Malwarebytes software. Nothing but cookies detected

All Replies (1)

more options

Hi chasserc, Not every malware scanner has everything please try multiple: Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one. Windows 8 has antivirus built-in already.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!