Blocking the bad guys. Microsoft may be moving away from its Edge browser in favor of a Chomiumn-based one like Google’s Chrome, but it’s far from done with its native web browser. The company just launched a pair of browser extensions for Chrome and Firefox that run a tiny Windows Defender to block bad Web sites from opening without oversight. The way it works, though, is interesting. For sites that WD finds are not on your company’s trusted list, it opens them in a safe container inside, you guessed it, the Microsoft Edge browser.