BIG THANKS to TheDcoder for his browser addon script (plugin).

See here - https://gist.github.com/TheDcoder/bbd889d4626d06f5293dfe9a2f06d12d

Addon - https://gist.github.com/TheDcoder/bbd889d4626d06f5293dfe9a2f06d12d/raw/c495abcd3e96332d494425d8754df5d2bf445549/background-image-url-copier.user.js