Hello,
this is exactly what the detection is looking for. A Firefox Bios extension, that is installed when you use the service to look for Biosupdates on the eSupport website. Unfortunately there is no uninstall option while a service and the Firefox extension are installed.
The category for this detection is PUPS (Possibly Unpopular Software), if you want to keep it, please set it to ignore witin Spybot.