HI, have you tried a reinstall of Hitman Pro ? Is this a trial or a paid version ? Have you looked for a update for Hitman Pro as Firefox, Windows 10 all updated on Apr 30th and the company should have tested this. Have you tried any forums besides Firefox that deal with Anti-Malware Programs ?

Hi,

My HitmanPro is a paid version, and I have left the issue including diagnostics with them already, but no answer yet. They usually respond in time, so I will wait for them first. It is them stopping the FF session, and not FF crashing itself, so the issue is probably with them.

Wim Vijfhuize

Hi, did you ever get this fixed or info from Hitman Pro regarding it or a update that fixed it ? If so please mark this as solved with your answer above. Thanks

No reaction from HitmanPro yet. I just sent them a reminder.

All, no reply from HitmanPro. But since Firefox is upgraded to 60.0.0, the problem has gone. There has been no update from HitmanPro as far as I'm aware. So the issue is closed with a unknown cause and solution.

Update 15-05-2018. Message received from HitmanPro that this issue has been confimed and resolved and an update released.