Unknown Mozilla dev addon "Looking Glass 1.0.3" on browser

Many people seem to be shocked because Mozilla installed an add-on automatically. In my opinion, it doesn't really matter since the code is coming from Mozilla - they're building the whole browser, so they could introduce functionality anywhere. If someone distrusts their add-ons, why trust their browser at all?

The main question is what behavior is being introduced. I haven't researched deeply, but apparently the add-on does nothing until the user opts-in on studies.

The major problem is that they installed an add-on without properly communicating what it was. A somewhat smaller problem but still a big problem is that was an utterly frivolous add-on that shouldn't have been pushed to people who didn't explicitly want it. But the biggest problem is that Mozilla seems to have trouble understanding why any of those two would be a problem, I want my browser vendor to be serious and not play silly games that can so easily backfire.

Yeah, add-ons from Mozilla merits the same trust as the browser. But this cuts both ways, this stuff undermines my and probably more people's trust in the browser.

So this is the first response from Mozilla in the Gizmodo article:

“Firefox worked with the Mr. Robot team to create a custom experience that would surprise and delight fans of the show and our users. It’s especially important to call out that this collaboration does not compromise our principles or values regarding privacy. The experience does not collect or share any data,” Jascha Kaykas-Wolff, chief marketing officer of Mozilla, said in a statement to Gizmodo. “The experience was kept under wraps to be introduced at the conclusion of the season of Mr. Robot. We gave Mr. Robot fans a unique mystery to solve to deepen their connection and engagement with the show and is only available in Firefox.”

This is horrible. They pushed out this crap under false pretenses as a study and obfuscated it. Don't talk the ethics talk if you're not prepared to do the ethics walk.