Here are a few of the most interesting Firefox statistics I was able to dig up. As always, be sure to check back in the future as I will be updating this post as new and updated stats become available.

Please note that some of these numbers are easier to find than others. A few of these stats come from Firefox’s own reports, but some are based on news reports and not official company tallies. Basically, this is the best I can find and I don’t guarantee anything to be 100% accurate.

Firefox Statistics and Facts

Year Firefox was launched:

1998

Number of Firefox monthly users:

350 million monthly users

Last updated 1/30/15

Firefox’s share of the worldwide internet browser market:

11.7%

Last updated 5/1/15

Number of Firefox for Android downloads:

100 million

Last updated 4/9/15

Percentage of the Firefox code that is written by volunteers:

approx 40%

Last updated 8/8/15

Number of languages Firefox is available in:

89 languages

Last updated 8/8/15

Percentage of Firefox users that use the non-English versions:

more than 50%

Last updated 8/8/15