I used Mozilla firefox for close to 20 years, perfectly happy. I was very happy when they made their android app but sadly it was the plague. Then they changed

I used Mozilla firefox for close to 20 years, perfectly happy. I was very happy when they made their android app but sadly it was the plague. Then they changed stuff on the desktop and it stopped working the same. I moved on to stuff that works ( not chrome or google). I would say some of it is definitely an engineering problem.