"As was the case last year, the bulk of Mozilla's revenues came from a search deal with Google. That deal has now been extended until November of 2011. As part of the deal Google pays Mozilla a fee every time someone does a search using the default Google Search start page that is included in Firefox.
"An interesting thing to note though is that there is not a 1:1 correlation between the user growth for Mozilla Firefox and the corresponding revenue from Google. Baker noted in her report that, "search revenue increased at a lesser rate than Firefox usage growth as the rate of payment declines with volume.""
