Firefox will not open when Immunet is running. When you try to open Firefox it crashes right away and will not open.
According to Firefox Support Forum It's possible that Immunet is injecting dll's into Firefox and causing it to crash.
Posted Question to Firefox Support Forum Below:
Recently installed Immunet Anti Virus and if Immunet is running Firefox crashes at start-up. If Immunet is stopped Firefox opens normally. Is there a known problem with Immunet Anti Virus and Firefox?