Clicking 'Use Firefox as my default browser' after launching the application is but the first step necessary to switch from Microsoft's own Edge in Windows 10.
Mozilla today released a Windows 10 version of Firefox, making good on a pledge last month to get something in users' hands as soon as possible after the debut of the new OS.
The open-source developer first announced plans for a Windows 10 Firefox in early July, saying then only that the browser would launch "soon." In planning documents later that month, Mozilla pegged Firefox 40, which shipped today, or the follow-on Firefox 41, slated for release September 21, as the likeliest candidates, with a heavy emphasis on the former.
Mozilla's decision to rush out Firefox for Windows 10 was a turnabout from 2014 when it abandoned years' worth of work on a browser for the touch-centric Windows 8.
The company recognized that it had to do something on Windows 10 to retain current Firefox users because Microsoft was aggressively promoting its own new browser, dubbed Edge, as the default for the OS. During the initial setup, Windows 10's "Express Settings" assigns Edge as the default, even if users had previously specified a rival like Mozilla's Firefox or Google's Chrome. Most users will simply click "Next" in the Express Setup without diving into the details.
Mozilla's CEO, Chris Beard, took exception to the tactic. In a letter Beard sent to Microsoft Chief Executive Satya Nadella, Beard blasted the default browser switch on Windows 7 or 8.1 PCs upgraded to Windows 10.
"These changes aren't unsettling to us because we're the organization that makes Firefox," Beard wrote. "They are unsettling because there are millions of users who love Windows and who are having their choices ignored, and because of the increased complexity put into everyone's way if and when they choose to make a choice different than what Microsoft prefers."
Microsoft defended the browser change but left the door ajar to modifications down the line.
Firefox for Windows 10 is actually little different from the stock version, which can run on the new OS as well as on older editions, including Windows 7.
Much of the emphasis Mozilla put on Firefox for Windows 10 today in a blog post was dedicated to pointing users to instructions for making the browser the default, booting Edge from the spot. "If you upgrade to Windows 10 or get a device that already has it installed, your default browser is set to Microsoft Edge by Windows, so we created support materials to show you how to restore or choose Firefox as your default browser in Windows 10," the blog explained.
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