Virus detected

I hadn't done a full scan of my pc for a while until last night when Norton picked up this virus 

Trojan.maliframe!html

and quarantined it. Does anybody know if this is a bad virus?

On the information it says on computer as of 24/02/2017 at 23:23:35

Last used 24/02/2017 at 23:26:13

Start up item No

Launched No

Source file 8e714d49951e2b-0 Infected file in users\name\appdata\local\mozilla\firefox\profiles offline cache

When it says not launched does that mean my pc wasn't damaged by the virus as it was just sitting on my pc waiting to be launched?

I have since ran 2 spyware scans and they picked up nothing