
The browsers bundled with operating systems, notably Microsoft’s Edge and Apple’s Safari, fell to new lows last month as they continued to lose users, showing that being the default no longer provided a significant advantage.
According to California-based analytics vendor Net Applications, Edge’s share of all Windows 10 personal computers and Safari’s share of all Macs dropped to record lows in June. Edge, the default for Microsoft’s newest operating system, was the preferred browser on only 11.8% of all Windows 10 systems. Meanwhile, Safari, the browser packaged with macOS (and before that, OS X), ran on 38.4% of all Mac machines.
Net Applications calculates user share by detecting the agent strings of the browsers people use to visit its clients’ websites. It then tallies the visitor sessions — which are effectively visits to the site, with multiple sessions possible daily — rather than count only users, as it once did. Net Applications thus primarily measures activity, although it does so differently than rival metrics sources, which focus on page views.
Edge’s popularity among Windows 10 users has been in decline since the OS debuted three years ago. A year ago, for example, Edge was the browser of choice for about 22% of all Windows 10 PC users. Two years ago, that number was about 27%.
At first, Edge’s problem was that its user share did not grow at the same pace as Windows 10’s. Even as Edge’s user share of all PCs increased, albeit slowly, its share of all Windows 10 devices fell month after month as the operating system added users in larger numbers than did Edge. The news for Edge got even worse, however, around September 2017, when the browser’s user share (of all PCs) began to fall, reducing its share of all Windows 10 machines even more.
There’s no other way to put it: Edge is a flop. In the face of some significant barriers put up by Microsoft — among them a multistep process to change Windows 10’s browser default — users have clearly rejected the browser. If all users of Windows 10 were represented by, say, a baseball team, only one of the nine players would be browsing with Edge.
It’s impossible to tell from publicly available data such as Net Applications’ what browser is the most popular on Windows 10 — Edge’s share can be calculated because it runs solely on Windows 10 — but the most likely suspect is Chrome. Google’s browser lost 2.1 percentage points of user share in June, falling to 60.7%. But it remained the No. 1 personal computer browser on the planet by a huge margin: Second-place was held by the effectively obsolete Internet Explorer (IE), with a user share of 15%.
Apple’s Safari has traced a track similar to Edge’s over the past two and a half years.
At the start of 2016, Safari was the preferred browser for about two-thirds of all Mac owners, a fraction that had been remarkably stable for some time. Within a year, Safari’s hold on Macs had weakened to the point where it barely held on to half of all machines. By January 2018, its share of all Macs had dropped to 43%.
June was the first time that Safari’s share of all Macs slipped under 40%, posting just over 38%.
As with Edge, it is impossible to know which browser or browsers replaced Safari for those Mac owners who ditched Apple’s. Chrome is the likeliest replacement because of its massive user share, but other possibilities include Mozilla’s Firefox and lower-tier browsers such as Opera Software’s Opera.
Safari’s inability to hold on to the Mac based on its default status is also more puzzling than Edge’s.
Microsoft’s browsers began their decline when the company forced Windows users to upgrade to the most recent version of IE and terminated some versions’ support early. The mandate kicked in in January 2016.
But by opening the door to change, Microsoft triggered a massive user desertion. As millions of users and businesses were told they had to switch browsers, they instead used the opportunity to abandon Microsoft’s and install rivals’, notably Chrome.
Although IE lost significant share — about 11 percentage points — in the 12 months before the deadline (Microsoft had first told customers of the new policy in August 2014), IE shed twice as much, around 22 points, in the 12 months after the mandated move.
Apple never demanded anything similar of its Mac users and continued to support Safari for the current version of macOS and the two previous versions.
One theory is that as Chrome replaced IE on users’ at-work Windows PCs, people followed suit on their at-home Macs, so they could, for instance, synchronize data such as passwords and bookmarks. In companies that supported both PCs and Macs, the Microsoft order may have sparked a similar shift from IE to Chrome, with Macs also adopting Google’s browser as those firms turned toward browser homogeneity.
Elsewhere in Net Applications’ data, the user share numbers reported that Firefox, which slipped under the 10% bar in April, remained stable in June at the same 9.9%.
Top browsers, May 2018
Mozilla’s Firefox landed on a slippery slope last month and may face a slow demise as users desert the browser for Google’s Chrome.
According to California-based analytics vendor Net Applications, Firefox lost a quarter of a percentage point of user share in May, ending the month at 9.9%. It was the first time Firefox has fallen below the 10% marker since November 2016.
Net Applications calculates user share by detecting the agent strings of the browsers people use to visit its clients’ websites. It then tallies the visitor sessions — which are effectively visits to the site, with multiple sessions possible daily — rather than count only users, as it once did. Net Applications thus measures activity most of all, although differently than rival metrics sources that focus on page views.
Eight years ago, Firefox accounted for more than a quarter of the globe’s browser share. That’s fallen to less than a tenth. More importantly, the trend for Firefox looks ugly. If the six-month average holds, Firefox will drop below 9% by September, then slide under 8% by January 2019.

While Mozilla may have access to different data — it should know, for instance, whether the active-user count is up or down — Net Applications’ numbers must be tough to swallow. The company has poured time and resources into revamping Firefox, which produced “Quantum” late last year. But the redesign failed to stop the browser’s drip-drip-drip of user share.
Other browsers also got bad news in May.
Microsoft’s browsers — Internet Explorer (IE) and Edge — shed seven-tenths of a percentage point last month, accounting for 16.1% of all visitor sessions worldwide. The decline erased two consecutive months of gains by IE and Edge. Like Firefox, IE and Edge are on a downward line; the six-month trend forecasts that they will dip below 16% by September.
That number will fall even more as the months tick by, and more enterprises discard Windows 7 for Windows 10. IE has been downgraded to a legacy application — suitable for running older web apps and sites, though with all but maintenance servicing abandoned — and as corporations revamp their apps, the need for it will vanish. And Edge has simply been a flop: In May, only about one in eight Windows 10 users ran the browser, a record low in its three-year history.
Even Apple’s Safari took a hit. The default Mac browser lost three-tenths of a percentage point to finish at 3.7%, the lowest number in nearly a year. And Apple’s “Chrome Disease” continued to progress, with no cure in sight, as just 41% of Mac users relied on Safari in May. The bulk of the rest had almost certainly deserted Apple for Google and its Chrome browser.
Chrome, in fact, gained an impressive 1.2 percentage points in May, the largest one-month increase since January 2017. The additional user share pushed Chrome to 62.8%, closing in on two of every three desktop and laptop browsers. The last time a browser had such a dominating position was more than eight years ago, when IE accounted for 63.2% of all user share.
If the six-month trend holds true, Chrome should pass the 64% milestone sometime in September, and zip above 65% before New Year’s Day.