Market share is down but revenue is generally way up. Not saying it's acceptable just because of this, but that spike in 2017 might have been in response to what they thought was an infinite gravy train.
Year Total
2010 $123 million
2011 $164 million
2012 $311 million
2013 $314 million
2014 $420 million
2015 $420 million
2016 $520 million
2017 $562 million
2018 $436 million
https://en.wikipedia.org/wiki/Mozilla_Corporation
Year Total 2010 $123 million 2011 $164 million 2012 $311 million 2013 $314 million 2014 $420 million 2015 $420 million 2016 $520 million 2017 $562 million 2018 $436 million https://en.wikipedia.org/wiki/Mozilla_Corporation