When I open a webpage in 'Chrome' browser, the page opens in Chrome and the window is maximized. But, when I open a page in Edge(Chromimum) and Firefox, the page is loaded in browser but the window is not maximized.

When I open a webpage in 'Chrome' browser, the page opens in Chrome and the window is maximized. But, when I open a page in Edge(Chromimum) and Firefox, the page is loaded in browser but the window is not maximized. Is there any way I can force Edge/Firefox to maximize when the page is loaded. This is causing lot of issue as Edge is the standard browser that we need to target for bot development.