If your latest version of Firefox is crashing when you are trying to install it on Windows XP, this might be caused by your Windows Firewall being turned off. This is how to quickly fix it:
- Enable Windows Firewall by clicking , click , type Firewall.cpl, and then click .
- On the tab, click
- Click .
- Install Firefox by running the Firefox installer.
More information about turning on the Windows XP firewall can be found in: How can I turn on or turn off the firewall in Windows XP Service Pack 2 or later versions?.
Technical information about this problem can be found in: bug 1120673.