Hi Dawn. I'm Greg, an installation specialist, 10 years awarded Windows MVP, and Volunteer Moderator, here to help you.
Make sure you have the latest Display driver from the PC maker's Support Downloads webpage for your exact model, which will determine the screen resolution.
Then adjust the resolution for each screen separately as shown here:
https://www.addictivetips.com/windows-tips/diff...
If the browsers still don't fit comfortably on one screen, adjust their size by clicking the middle Maximize button at top right (between the - and X buttons) until you can resize the window. Drag the borders of the browser Windows exactly where you want them. Then close and open to see if it sticks. If not drag them again and click the middle Maximize box a few times to try to program the size.
If not this is due to another program conflicting. You can resolve it by one of these methods or 3rd party tools:
https://www.computerhope.com/issues/ch001478.htm
https://www.raymond.cc/blog/how-to-resize-an-un...
https://lifehacker.com/resize-your-windows-apps...
I hope this helps. Feel free to ask back any questions and keep me posted. If you'll wait to rate whether my post resolved your problem, I will keep working with you until it's resolved.
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