I'm getting strange files on my desktop "0A75SC100" & "0CFSC100" when I use Firefox. Can't open or trash them..

I'm getting strange files on my desktop when I use Firefox. They have no extensions, won't open, & can't be trashed. File names such as 0A75SC100 & 0CFSC100. When I restart my computer they disappear. There does not seem to be a correlation between a website and when these files appear.
Do I have some type of virus?

Hi Midnight
When I got my imac and used it for a while, for some reason I get .exe, .rm, .mov, and some other files on my desktop
These can safely be ignored as they are probably left over files from something you may have downloaded or only partially download or leftovers from a failed download. The same applies for data transfers
and their filenames are like dhdhdhdhdhd or sjakdshlj34338 and stuff, and when I open them, they are some of my other files I already have, but they appear for no reason. What causes this and how can I prevent this from happening.
Looking at the repitition of letters its more than likely that you are the cause – yes you! You may find it hard to believe but its more than possible that when you think you are typing something and nothing seems to be happening its because you have in fact accidently selected something on your desktop and typed there instead.
I know they are viruses because they loaded just fine
This must be a grammatical error as it does not make sense.
Hope this helps – Tony

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