Regardless of how I personally will use Firefox and adjust its settings, this change makes me less likely to suggest it as a browser to friends and relatives.

Regardless of how I personally will use Firefox and adjust its settings, this change makes me less likely to suggest it as a browser to friends and relatives. It still has enough large advantages that I will continue to use it (especially on mobile, with extensions), but I'm just one person. Those less knowledgeable about computers in my friends and family make up a lot more potential Firefox users, and they are the ones at risk with this kind of change.