By default now Firefox for Android shares an extra link with TRACKING for advertising itself. This is the features that everyone loves.
Ok, buried in the menu there's an option to disable this shit. But it's infuriating that a "please spam my friends and track the opening rate of my links" option is enabled by default
I don't get it. I'm not seeing the same thing, and I can't find any reference of anyone else reporting the same issue online either. Either this isn't an accurate report, or it's some very specific A/B testing. I can't find any options in settings that mention this functionality either.
According to another comment by OP, it only happens when they share a link to WhatsApp from Firefox.