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That estimate seems pretty far off. First, I think it's only fair to attribute ~1/2 of their revenue to search. You've got to give a lot to web ads, gmail ads, etc. Second, I'm not sure it's quite fair to give FF 25% of their total search. It may be 25% of their desktop search, but mobile search is getting bigger and bigger. I'd say 25% is at best an upper bound. Third, I think a large number of FF users would use Go…
That estimate seems pretty far off. Well, it may well be 50% off, or even 80% off, but it does give you an order of magnitude. 100% correct numbers aren't really material: this is a really good deal for Google. You are right that not all their revenue comes from search, and I should have thought of that. 66% of their revenue is from Google websites[1]. They don't break that down, but I'd suspect 90% is search (Youtub…
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