Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

i keep getting a message: firefox is already running...I have gone on the troubleshooting but cannot find a solution...anyone else having this problem

  • 1 ŋuɖoɖo
  • 1 masɔmasɔ sia le esi
  • 1 view
  • Nuɖoɖo mlɔetɔ Helper7677

more options

Everytime I close Firefox I get this message. I have tried several times through the troubleshooting but it is not clear enough on what to do

Everytime I close Firefox I get this message. I have tried several times through the troubleshooting but it is not clear enough on what to do

All Replies (1)

more options

If you close Firefox and then restart within seconds, you will get that message, because you did not give Firefox 10-30 seconds to completely shut down or Windows is lagging in clearing everything related to Firefox shutting down.

Your problem could also be caused by Firefox "hanging at exit", which is frequently caused by an Extension or a Plugin. Read below:

Sounds like it is hanging when you exit and later try to restart Firefox.