Im one of those die hard firefox users and have been using it for over a decade.

It's quite worrying that it relies on Google to exist. This article details the finances behind it, and it's an interesting read.

• Mozilla have tons of money, and the donations are tiny in comparison to their real revenue stream.

• 70% of revenue comes from Google, by having Google Search as a default search engine.

• Its not clear where the revenue is being spent. There are no large costs.