'Some Firefox users have discovered that the new default Windows 10 browser, which is shipped to their devices via Windows Update, sometimes imports the data from Mozilla's application even if they don't give their permission. Softpedia reports:

Some of these Firefox users decided to kill the initial setup process of Microsoft Edge, only to discover that despite the wizard shutting down prematurely, the browser still copied data stored by Mozilla's browser. Several users confirmed on reddit that this behavior happened on their computers too. Microsoft has remained tight-lipped on this, so for the time being, it's still not known why Edge imports Firefox data despite the initial wizard actually killed off manually by the user. Users who don't want to be offered the new Edge on Windows Update can turn to the dedicated toolkit that Microsoft released earlier this year, while removing the browser is possible by just uninstalling the update from the device.'

-- source: https://news.slashdot.org/story/20/06/23/2027205

Cheers, Peter