750 people is a total number. Number of people involved into developing Firefox is way less.
$200 millions are the aggregated expenses of ALL software 'development' efforts of Mozilla Corporation like VPN, Relay, Pocket, mozilla.social, etc. And there are a lot of interesting expenses which are billed as development. According to Lunduke (1) who dived into the details a bit, there are many very questionnable expenses which are not related to Firefox development.
So the questions is still very open, how much does Firefox development actually costs? Developing Thunderbird costed around $2 millions in 2021 (2).
$200 millions are the aggregated expenses of ALL software 'development' efforts of Mozilla Corporation like VPN, Relay, Pocket, mozilla.social, etc. And there are a lot of interesting expenses which are billed as development. According to Lunduke (1) who dived into the details a bit, there are many very questionnable expenses which are not related to Firefox development.
So the questions is still very open, how much does Firefox development actually costs? Developing Thunderbird costed around $2 millions in 2021 (2).
1 - https://lunduke.locals.com/post/4387539/firefox-money-invest... 2 - https://blog.thunderbird.net/2023/05/thunderbird-is-thriving...