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

what is this error message?

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

more options

Upon installing Firefox, this warning popped up in the pcfirewall box, wont go away, no instructions, nothing. Why am I getting this warning? First asked/told me an unknown something was trying to install ofr do something, then this box popped up & stayed. with the following; ? unknown application childs application PID: 1852, childs application path: c\Programfiles (x86)\mozillafirefox\firefox.exe event type: childs accessing the network (I DONT HAVE KIDS) Launching Applixcations PID: 1680 Aplication Path: c:\users\6458am\appdata\local\temp\7zs606a.tmp\ ...(CANT SEE THE REST) What is this unknown application, childs application PID 1852? a warning on my pc firewall? Has no instructions just this, WHY?

http://www.mozilla.com/en-US/products/download.html?product=firefox-5.0.1&os=win&lang=en-US

Upon installing Firefox, this warning popped up in the pcfirewall box, wont go away, no instructions, nothing. Why am I getting this warning? First asked/told me an unknown something was trying to install ofr do something, then this box popped up & stayed. with the following; ? unknown application childs application PID: 1852, childs application path: c\Programfiles (x86)\mozillafirefox\firefox.exe event type: childs accessing the network (I DONT HAVE KIDS) Launching Applixcations PID: 1680 Aplication Path: c:\users\6458am\appdata\local\temp\7zs606a.tmp\ ...(CANT SEE THE REST) What is this unknown application, childs application PID 1852? a warning on my pc firewall? Has no instructions just this, WHY? http://www.mozilla.com/en-US/products/download.html?product=firefox-5.0.1&os=win&lang=en-US

All Replies (1)

more options

This issue can be caused by the presence of leftover files in the Firefox program folder (defaults\pref) like a file firefox.js that overrides the update URL with a wrong link.

Do a clean reinstall and be sure to remove the Firefox program folder to remove the file(s) that cause the problem.

See: