As the French economy stages a gradual recovery, online sales growth has been boosted by a growing number of online vendors and people using the Internet to shop more often.
The Fevad federation said an additional 1.358 million people made online purchases in the quarter, up 4pc from a year ago.
Sales generated via tablets and smartphones rose 22pc and Fevad predicted orders made on smartphones could outpace those made via computers by 2021.
The average value of the basket fell 6pc to 61 euros in the first quarter, although there was an increase in the frequency of purchases, added Fevad.
There were, on average, 12.7 online transactions per buyer in the first quarter, up from 10.7 a year ago.
In 2018, E-commerce represented 9.7pc of overall French retail sales, up from 8.7pc in 2017.
In February, Fevad said online retail sales in France could exceed 100 billion euros for 2019.
CLICK-AND-COLLECT ON THE RISE IN FRANCE
A separate statement by Fevad and research firm Nielsen showed that E-commerce made 7.1pc of the sales of so-called 'fast moving consumer goods' (FMCG) in France, ahead of 6.3pc in Britain, the United States' 5.6pc and Germany's 1.4pc but behind 20pc for South Korea and 18pc for China.
One reason for France's advance was that click and collect had become a key part of shoppers' routines, while drive-through services - where consumers order online but collect the shopping by car or on foot or by home delivery - were also increasing in prominence.
Drive-through services were on the rise with the opening of new pedestrian outlets in city centers where people order online and pick up their purchase on foot, with over 5,100 selling points and sales up 7pc on a year-on-year basis in 2018.
Amazon has made no secret of its desire to launch a grocery delivery service in France as part of its global ambitions to expand into food retail.
Last month Amazon and French retailer Casino expanded their partnership, with Amazon installing pick-up lockers in Casino stores and making more of the French company's products available on Amazon.