Where is this Cross Site reference coming from?

[Al]

I visited some site and did something (!) and now whenever I bring up Firefox, I get this XSS Warning from noscript

https://prnt.sc/hl6lye

(sorry, I seem to be unable to post the image directly. Please follow the url - it's safe)

I have rebooted several times, and even when I restart Firefox, this XSS warning shows up all by itself before I visit any site other than my home page which is an html file on my own machine. Can anyone suggest where the reference that's causing the warning might be coming from?

I have not selected 'Always block' as I want to know that this is still occurring until I can cause the discogs reference from happening. Ideas, please...

[Azijn]

It's coming from inside the Firefox!

https://forums.informaction.com/viewtop ... =7&t=23794