The outrage over looking glass was because it was an unwanted advertisement/promotion being pushed as a 'study' In this case, they were pushing a hotfix for a

The outrage over looking glass was because it was an unwanted advertisement/promotion being pushed as a 'study' In this case, they were pushing a hotfix for a critical issue effecting all firefox users. It was only pushed through the studies system because it was the best option to get the fix to as many users as possible while they worked on a firefox update. Implying that this is in any way equivalent to looking glass is completely disingenuous.