[gcp]

Did you report this on Bugzilla? Even if it's not Firefox's fault if you don't report it no-one knows about the issue.

Recent versions of Firefox allow you to block some stuff like that: https://support.mozilla.org/en-US/kb/identify-problems-third...

Though it's possible they use different code injection tricks to make blocking impossible. (You can't block Defender from listening to events for example)