According to Mozilla's Chief Operating Officer, the Firefox browser is now being used by over 125,000,000 people worldwide, give or take a few.

According to a post on John Lilly's blog, Mozilla has been tracking server pings sent by instances of the popular web browser's automatic update feature. According to Lilly, the tracking indicates that approximately 42 million instances of the automatic update service ping the Mozilla servers on an average day, and using this data, they are able to extrapolate to a worldwide total of 125 million users.

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