I have been a user of Microsoft and their browser for years. First "Internet Explorer" and since its launch "Edge", never had a problem.
The other morning came to click on the Edge icon and instead of the browser springing to life as it has done for years, all I got was a small spinning circle for a second or two and nothing, no Edge opened.
Luckily, some time ago, had I also installed Google Chrome and was therefor able to use Chrome to connect to the Internet to try to troubleshoot the Edge problem.
A few hectic days of scouring the internet trying all the suggestions to get Edge going again failed so have resorted to using Chrome.
The point of this post, as in the title, is a heads up for those with only one computer to install a second browser so you will have access to the internet should you main browser fail.
Without a backup browser and access to the Internet you will be well and truly stuffed in fixing any problem, even contacting this site for help would not be possible
A further point, whatever backup browser you choose be sure to import all your browser Bookmarks and Favorites to the backup, because once your main browser fails it may be too late to save all that information.