Take a look at the platform statistics there. Nearly half of the feedback (46%) comes from Android users. Reading the comments, they seem like the (very uninsightful) reviews you typically see in the Google Play Store where the "unhappy people will complain" seems to be quite true.
Firefox for Android is a fundamentally different beast from the browser on Windows/Linux/MacOS. I am quite happy with the desktop version, yet I find the mobile experience quite underwhelming.
If you limit the selection by platform, on Android it will even show "100% sad, 0% happy" -- Mozilla has some work to do there. On Windows 7 you get "81% sad, 19% happy". Still bad, I agree, but don't just dismiss the inherent bias of a feedback system. And compare them to the stats for competitors, too.
Firefox for Android is a fundamentally different beast from the browser on Windows/Linux/MacOS. I am quite happy with the desktop version, yet I find the mobile experience quite underwhelming.
If you limit the selection by platform, on Android it will even show "100% sad, 0% happy" -- Mozilla has some work to do there. On Windows 7 you get "81% sad, 19% happy". Still bad, I agree, but don't just dismiss the inherent bias of a feedback system. And compare them to the stats for competitors, too.