To change the Start or Home page on the three different most popular browsers:

1.  Decide what you want to have as the page showing when you first open the Internet Browser
     you plan on using at start up, be it Firefox, Chrome or Edge, etc. For example, www.abc.com

2.  Go to that page by keying in the address in the address bar.

3.  Chrome:   
                    Click on the three line menu in the upper right side of the screen
                    Click on the 'on Startup ' item
                    Click on the bottom Circle called 'Use current pages'
                    Close the entire window


4.  Firefox:
                   Click on Tools on the top line menu                 
                   Click on the Properties Item and then click on the Home item                 
                   Click on 'Use Current' and then Click on the Upper Right X to close.


5.  Microsoft Edge:  
                   Click on the three dot menu located on the upper right side of the screen
                   Click on the 'Settings' item
                   Click Start Home and New Tab item
                   Click on Use all open tbs
                   Close the entire browser

Once the above steps are/is completed, the next time the browser is opened the same page should be loaded on Startup

I hope all remains well for you. Please contact me if you have questions or concerns.
Thank You,

Joe