Microsoft Edge is the default browser in Windows 10. However, this can be changed to any other browser like Firefox or Chrome if needed.
Here is how :
Access All settings from the Action Center in system tray.
Then choose System.
Scroll down the list to Default apps.
From the Web browser section, click on the + and select the preferred browser to be used as the default.
From now on, Edge won’t be the default browser.
Happy browsing.