270 Million Firefox Users and Counting

By | May 7, 2009

Firefox, the browser that is going to to reach 25% market share soon, is being used by more than 270 million people, according to Asa Dotzler, Mozilla’s director of community development.

How were the calculations done?

As he explains: “The best method we’ve come up with is to count the number of security “pings” we get in one day. (Firefox pings a Mozilla server for security changes about once per day) and multiply that active daily users number by three to get active monthly users. (See John’s blog post for more on this.)”

Although data is not 100% accurate, is can still give you an insight on Firefox users count.


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  1. Tiago Sá says:

    It’s not 100% accurate, specially single not all users have their firefox pinging to mozilla :P

  2. mabdul says:

    and others don’t start their browser in every period: my mothers pc, for example is othe more than a week offline…

  3. TTT says:

    I take it you’re talking about us package manager users?

  4. mabdul says:

    no, i do think that some have turned off the automatic updater…

  5. In my opinion it’s stampede… In fact Firefox isn’t as awesome, cool, fast, bla, bla, etc. as everyone says.