Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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.

I get an error message when I double click on Firefox... It says an application is already running and I need to restart my computer

  • 1 பதிலளி
  • 1 இந்த பிரச்சனை உள்ளது
  • 5 views
  • Last reply by cor-el

gannonsm
gannonsm
more options

I get an error message when I try to re-launch Firefox. I believe I have closed it out. When I try to launch the application it gives me an error message saying it is already running. it tells me I need to restart the computer

I get an error message when I try to re-launch Firefox. I believe I have closed it out. When I try to launch the application it gives me an error message saying it is already running. it tells me I need to restart the computer

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See "Hang at exit":

Your above posted system details show outdated plugin(s) with known security and stability risks that you should update.

  1. Shockwave Flash 10.1 r53
  2. Java Plug-in 1.5.0_06 for Netscape Navigator (DLL Helper)

Update the Flash plugin to the latest version.

Update the Java plugin to the latest version.