Netmarketshare's browser market share has just been updated to include May 2018 share information.
The company recorded a drop below the 10% mark in the desktop and laptop devices market for the Mozilla Firefox browser.
Firefox had a market share of 12.63% in June 2017 according to Netmarketshare
and even managed to rise above the 13% mark in 2017 before its share fell to 9.92% in May 2018.
Firefox dropped below the 10% share value on Netmarketshare