Unknown Mozilla dev addon "Looking Glass 1.0.3" on browser

Looks like it's a promo for Mr Robot, which is really not ok.

> What's happening? Are you a fan of Mr Robot? Are you trying to solve one of the many puzzles that the Mr Robot team has built? You’re on the right track. Firefox and Mr Robot have collaborated on a shared experience to further your immersion into the Mr Robot universe, also known as an Alternate Reality Game (ARG). The effects you’re seeing are a part of this shared experience.[0]

EDIT: looking at this[1] comment, perhaps it's not a promo?

[0]: https://support.mozilla.org/en-US/kb/lookingglass [1]: https://www.reddit.com/r/firefox/comments/7jh9rv/what_is_loo...

Wow. So Mozilla lets advertisers push extensions to your browser? Is that right or am I misunderstanding something?

> So Mozilla lets advertisers push extensions to your browser?

Of course not.

Mozilla can install extensions if you have "shield studies" enabled. They use extensions it to run UI studies and things like that. I think you have to opt-in to each study individually if you want to be part of it. Enabling the studies in your settings only means "notify me when there's a new study I can participate in".

See https://support.mozilla.org/en-US/kb/shield and https://wiki.mozilla.org/Firefox/Shield/Shield_Studies

Now they have partnered with Mr Robot to use the same feature to offer some sort of "Alternate Reality Game".