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

Tabs open on their own.

  • 2 replies
  • 17 have this problem
  • 9 views
  • Last reply by cor-el

more options

While my computer is idle, a tab in Firefox opens on its own leading to an advertisement site. Why does this happen and how can I prevent this?

This happened

Just once or twice

== Today

While my computer is idle, a tab in Firefox opens on its own leading to an advertisement site. Why does this happen and how can I prevent this? == This happened == Just once or twice == Today

All Replies (2)

more options

Do a malware check with a few malware scan programs. You need to use all programs because each detects different malware.

http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware http://www.superantispyware.com/ - SuperAntispyware http://www.safer-networking.org/en/index.html - Spybot Search & Destroy http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page .......... See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

more options

I have the same problem, but I've also ran 4 different scans all from different anti-malware/spyware programs and its still happening.

Using Windows 7 and I have AVG, Malwarebytes, Ad-Aware, and the general Wall that's already on my computer.