Microsoft Edge is the new default web browser in Windows 10. If you do not like it, Windows 10 allows you to configure your preferred browser as the default web browser.
  • Click or tap the Start    button, and then click Settings.
         
  • In the Settings menu, click or tap the System icon.
         
  • Next, within the left navigation of the System menu, click or tap Default apps. In the right-hand pane, scroll down to the Web browser section. Microsoft Edge should be pre-selected. Click or tap Microsoft Edge.
         
  • A new Choose an app menu will open. The menu will list the web browser applications installed on your computer. In this example, we will choose Firefox as the new default Web browser app.
         
  • With Firefox selected as the default Web browser app, content that launches in your web browser, such as a link clicked in an email, will launch in Firefox instead of Microsoft Edge.