EdgeDeflector Forces Cortana to Use Your Default Web Browser
Windows: Cortana can do a lot of cool things in Windows 10 , but she generally prefers Microsoft’s own apps and services. EdgeDeflector can force Cortana to use Chrome, Firefox, or whatever browser you prefer.
This lightweight application works almost invisibly. Once you launch it, your next Cortana web search will ask you which app to use to open the search. Select EdgeDeflector and then it will ask which browser you want to use (or it might just use your default browser). From now on, any search queries will open in your browser. Unfortunately, Cortana still uses the default search engine, Bing, but you can also redirect it using an extension like Chrometana .
EdgeDeflector | Github via exciting tips