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

A Firefox Tab is stopping all other activity, cannot close it

  • 1 ŋuɖoɖo
  • 1 masɔmasɔ sia le esi
  • 2 views
  • Nuɖoɖo mlɔetɔ Scribe

more options

I've tried a number of anti-adware and anti-virus products including adware, malware-bytes (and their tools).

I cannot find a way to get rid of the tab. It locks Firefox and appears in 'Safe' Mode

It is not the home tab.

I've tried a number of anti-adware and anti-virus products including adware, malware-bytes (and their tools). I cannot find a way to get rid of the tab. It locks Firefox and appears in 'Safe' Mode It is not the home tab.

All Replies (1)

more options

Hi, what's its URL?

Note that Firefox is able to open multiple home pages with the URLs separated by a 'pipe' (|), so please see - How to set the home page, and in 'Home Page,' make sure that in addition to your home page URL, there isn't anything else - if there is, just delete it. (the Firefox start page is about:home but you may have set a different one, or the New Tab page is about:newtab).

You can also try any of these that you haven't already -

Note that not all removal programs will detect all malware, so you may need to run several or all of them.

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

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