https://techcrunch.com/2017/12/15/mozillas-mr-robot-promo-ba...

> If you’re a Firefox user, you may have noticed a weird new extension that suddenly showed up in your browser this week. > The extension is called “Looking Glass 1.0.3” and this is its description: MY REALITY IS JUST DIFFERENT FROM YOURS. Now that sounds ominous. It’s really not, though. It’s a promotional campaign between Firefox and the TV series Mr. Robot that brings an alternate reality game to your browser. This must have sounded like a great idea when somebody pitched it to Mozilla, but the backlash has been fierce.

Besides the other sources, here's the HN discussion at the time:

"Unknown Mozilla dev addon "Looking Glass 1.0.3" on browser" - 757 points - Dec 15, 2017 - 515 comments - https://news.ycombinator.com/item?id=15931730

Well you see Mozilla did one Bad Thing a decade ago and that's a good reason to continue using the Ad Industry's chosen web browser instead; The one that gained most of it's marketshare by taking a page out of the malware industry's books and paying Oracle to include Chrome in the Java installer, among many many others.

You could always tell they didn't mean to install chrome, because these people would also have a malware "Chrome" browser that installed through the exact same pathway.

In 2017 Mozilla silently installed an extension promoting the TV show in everyone's Firefox.