As we all know a Browser object doesnot have default methods to maximize or minimize as a Window object has. So, we can achieve our target by converting a Browser into a Window. This can be done by using a property called window handle which is represented by hwnd.
Please see below for the sample functions.
Public Function fnMaximizeBrowser()
varWinHandle=Browser("").Getroproperty("hwnd")
Window("hwnd:="&varWinHandle).Activate
Window("hwnd:="&varWinHandle).Maximize
End Function
Public Function fnMinimizeBrowser()
varWinHandle=Browser("").Getroproperty("hwnd")
Window("hwnd:="&varWinHandle).Activate
Window("hwnd:="&varWinHandle).Minimize
End Function