Windows 10 comes with Edge as its default browser. If you prefer to use a different web browser, such as Firefox, Chrome, or Internet Explorer, then you may also want to make that browser the default browser on Windows 10 instead.
Most third-party browsers display a prompt on start when a scan determines that they are not the default system browser.
When you select the option on Firefox, for instance, you are taken to the "Default Apps" page in the Windows 10 Settings.
Since some browsers may not make the change properly or at all, you may want to follow the guide below which guarantees that you can set another browser as the default system browser on Windows 10.
To change the default web browser via the "Default Apps"
Tap on the Windows-key, type “default app settings” and hit enter.
Locate Web Browser on the page that opens up.
Click on Microsoft Edge (or the name of the browser listed there if it is another one), and select one of the available browsers displayed in the overlay.
You may select any installed browser including Internet Explorer at this point in time.
The name of the new browser is listed as the new default application immediately. You may use the reset button to reset all custom programs set on this page or switch to another browser with a click on the name of the current default one.
This is not the only option Windows 10 provides right now to set the default web browser. The current version of Windows 10 ships with the classic Control Panel, which you can use to set default programs as well.
Using the classic control panel to change the default browser on Windows 10
Tap in the Windows-key, type default programs and hit enter to start the process.
This brings up the classic control panel, more precisely the "choose the programs that Windows uses by default" applet.
Select "set your default programs" when the window opens up and wait until the list is populated. Microsoft displays programs on the page, and when you select a program there, it displays options to make it the default for all or some of the file types it supports.
Locate your web browser of choice and click on "set this program as default" to make it the default browser for all protocols and files that it can open.
Note: Microsoft has expressed the intention of removing the classic control panel in future versions of Windows 10. Most -- if not all -- applets will be integrated into the operating system's Settings application instead.