firefox has this thing called surveys, which can install and run in-browser extensions. it's meant for a/b testing, and very tightly controlled as to not blow the trust of the users. basically the entire corp needs to sign off on a survey.

...but then the mr robot showrunners knew some c-level at mozilla and he pushed their code out without telling anyone. he bypassed all the security routines. and the extension had no mr robot branding on it, just some spyware name from the show, meaning that everyone suddenly had an extra extension named something like "spyglass" and moz support couldn't answer why because they weren't told.