Over the two years from March 2015, Chrome grew in market share from 25.4% to 57.13%, according to figures available at Net Market Share.
Chrome is a proprietary browser made by Google; the company also makes a browser named Chromium that is open source.
The browser to have seen the biggest drop in usage, according to these figures, is Microsoft's Internet Explorer, which has dropped from 46.06% to 13.17%.
Apple's Safari, which is again a single-platform browser, has seen little movement, with 11.96% Apple users utilising it in March 2015 and 11.91% in February 2017.
Firefox has seen bigger user movement than Safari, falling from 9.71% to 8.01%.
There is a somewhat surprising number of "other" browser users: 5.94% in February 2017. This figure, too, has shown a downward trend from 6.87% in March 2015.
This presmuably includes browsers like Opera, Brave, Vivaldi, Konqueror and Web (originally called Epiphany).
NetMarketShare collects data from visitors to its network of HitsLink Analytics and SharePost clients. It says the network includes over 40,000 websites, and spans the globe.
Of its data collection, it says: "We 'count' unique visitors to our network sites, and only count one unique visit to each network site per day. This is part of our quality control process to prevent fraud, and ensure the most accurate portrayal of Internet usage market share. The data is compiled from approximately 160 million unique visits per month."