How to fix this error Please HELP.

[RUDEBWOY]

Faulting application firefox.exe, version 1.8.20070.21917, faulting module ntdll.dll, version 5.1.2600.2180, fault address 0x00018fea.


I CHECKED MY EVENT viewer and i keep getting that error here and that and it messes with my cpu any idea how to fix this?

 

[riekmaharg2]

Try installing the new firefox 2 or uninstall firefox and reinstall firefox