Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox will not allow any new windows to open when clicking on a link which opens a new window

  • 1 reply
  • 12 have this problem
  • 3 views
  • Last reply by cor-el

ResinEight
ResinEight
more options

When clicking on any link which opens a new window, Firefox will do nothing when I click on the link. Then, if I close Firefox, I cannot open it again as it says something along the lines of "Firefox is already running on this computer."

I read that this may be a Java issue, but I have installed the latest version of Java AND the latest version of Firefox.

This issue occurs on any website in which a link opens a new window (for example, when on ebay, clicking the "enlarge" button beneath the photo on a listing).

When clicking on any link which opens a new window, Firefox will do nothing when I click on the link. Then, if I close Firefox, I cannot open it again as it says something along the lines of "Firefox is already running on this computer." I read that this may be a Java issue, but I have installed the latest version of Java AND the latest version of Firefox. This issue occurs on any website in which a link opens a new window (for example, when on ebay, clicking the "enlarge" button beneath the photo on a listing).

All Replies (1)

cor-el
cor-el
  • Top 25 Contributor
  • Moderator
more options

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

See also http://kb.mozillazine.org/Firefox_hangs and Firefox hangs or is not responding - How to fix (Hang at exit)