Why doesn't Firefox seem to be completed as my default browser?

Hello, Here are the steps to set Firefox as the default browser. The main method is to open Firefox, click the menu button, and select settings. Then in settings, go to the general tab. Then, click the make default button. If the button doesn't appear, then it is the default browser already. If the in browser button doesn't work, try manually enabling it. To do so, press the win key and type default apps. After that, open the app default settings, then search for firefox in the list of applications, then accept it.