Mozilla chief executive Chris Beard has written an open letter to Microsoft's Satya Nadella, criticising the company's decision to make Edge the default browser in Windows 10, even if the user is updating from a system that previously used Chrome or Firefox as the default. 

Mr Beard said he was "deeply disappointed" with the decision, accusing Mr Nadella of throwing away the choice his customers have made about the internet experience they want, and replacing it with the internet experience Microsoft wants them to have. 

He said that, while it is still technically possible to preserve people's previous settings and defaults, it now takes "more than twice the number of mouse clicks, scrolling through content and some technical sophistication" for people to reassert their choices.