Way to move the goalposts. The argument is not about the usefulness, it's about baked-in on by default features for what are obvious extension workflows. About the only marketing advantage FF has at this point is customizable and lack of dirty tricks. Mozilla seems confusingly desperate to sell out here asap
They would need to finance a lot less development if they stopped changing things and just worked on maintaining a limited core functionality including a nice extension system. That's it. Most of their "development" over the last 10 years has been a total waste of time.
I don't know, do you have evidence to the contrary?
Either way, all I'm saying is when I look at the UI changes that have been made to Firefox over a period of years, I believe their value to me is closer to zero than their development cost is.
The recent change that allows you to easily customize the top bar UI layout in insanely useful. We can now have an out of the box 2 row layout with no CSS.