Firefox claims over 125 million active users

Mozilla Firefox logoA study of "pings" to Mozilla's servers estimates nearly 49 million may be using a version of Firefox on a daily basis. That's 15 million more than a Mozilla study estimated, using a different metric, for users in July. It has been notoriously difficult to determine how many people use the Firefox browser, though many have come to an agreement that the number of downloads of any new version is not a reliable indicator. Today, a new estimate by Mozilla's Chief Technology Officer, John Lilly, makes a claim that would appear to be a significant adjustment to one just four months ago by Mozilla's user experience lead, Mike Beltzner, by way of some unique mathematics.

As of last week, the CTO wrote on his corporate blog, the number of pings sent to Mozilla's update servers by installed clients in the field registered a record of 48.8 million. Each of those pings, Lilly wrote, represents a single daily user. To convert that figure into the total number of worldwide users per month, he states, all you have to do is take that figure and multiply it by 3.

"To get from the [Average Daily User] number to our whole worldwide number of users, measured in terms of uniques in a given month, like most every Web site does," Lilly writes, "we multiply ADU by 3. So for a couple of weeks ago, with 42 M ADUs, we compute that we have something in excess of 126 M unique monthly users."

Just last July, however, Mozilla's Beltzner made what appeared at that time to be an equally astounding claim: 100 million unique monthly users for Firefox, based on an estimate of active daily users that was closer to 33 million - about one-third lower than Lilly's record of last week.

But helping to substantiate Lilly's more recent claim is a separate blog post yesterday by Mozilla's analytics chief, Ken Kovash, who presents a formula that some may use to arrive at the 126 million total user mark from the opposite direction: Citing a formula being tested by what Mozilla calls "Project Funnel Cake" -- a way of assessing likely usage share based on reliable figures -- Kovash estimates that the fraction of Firefox downloaders who actually install the product on their system is a surprising 57%, and that the number of the remainder who go on to use the product on a daily basis is 49%.

As of today, a check of the live counter estimates over 448.7 million total Firefox downloads, life to date. Applying Kovash's formula to this number, one arrives at 125.3 million -- very much in line with the figure Lilly arrives at by multiplying AUS pings by 3.

Tags: Firefox, Mozilla

Add comment

Your name:
Sign in with:
Your comment:

Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party

Last news

You can use a security key instead of having a code sent to your phone
Adobe says that the AI can now achieve the intended result in seconds
A new security protocol replacing the aging WPA2
Download and install at your own risk, of course
More iPhone parts likely to be produced by Samsung
Starting on Friday, video views on YouTube will start to be counted by the Official Charts Company
LG has already announced two new V-series members in 2018
The method is blocked and the hack doesn’t work, it adds
The Samsung Galaxy A5 (2017) Review
The evolution of the successful smartphone, now with a waterproof body and USB Type-C
February 7, 2017 /
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /

News Archive



Do you use microSD card with your phone?
or leave your own version in comments (11)