My Norton virus detection software regularly finds viruses and Trojan horses in the directory: C:\program files\Mozilla Firefox Why?

Just searching your question, I found this. You should try posting your question here since it's Norton giving you the message. https://community.norton.com/en/forums/trojan-horse-detected-0

I am curious to see what file(s) Norton is flagging as bad and what's the path to the files. Post a screenshot.

I wouldn't expect the program directory to change as you browse, unlike your active profile folder (website storage databases, web content cache). Does the software mention any specific files that it finds objectionable?

jscher2000 Thank you for your thoughtful input.

jscher2000 - wrote

"I wouldn't expect the program directory to change as you browse, unlike your active profile folder (website storage databases, web content cache). Does the software mention any specific files that it finds objectionable?"

I agree. Specific files? Good question!

It seems that Norton renames the file to the "name/number" they assign the virus.

Ex: Filename: Trojan Horse Full Path: c:\program files\mozilla firefox\00031159.tmp

The virus/trojan seem to use Mozilla to escalate privilege to write to a read-only directory.

There is a new version of Firefox ESR out this week. I don't know whether installing it will make any difference, but you could try.

https://www.mozilla.org/en-US/firefox/115.8.0/releasenotes/

https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr