Firefox Issue

[Beave2012]

I only use window mode when I need 2 pieces of info at the same time (such as quoting information) otherwise alt-tab does fine for me.

I don't know if Windows has this feature, but the Linux desktops have a window switcher in the taskbar. Active programs show up in the taskbar when they are running. A simple single click on the icon of the program you want brings any running window to the front for use. It does a similar function to ALT-TAB, but is easier to use as it doesn't require cycling through all active windows.
Also, there is a workspace switcher that allows you to set up multiple full screen workspaces. The workspace switcher sits in the taskbar and you can run a full screen application in each workspace. A single click on the desired workspace puts that one on your screen.

Windows 10 has multiple desktops, but his windows nt does not. But all active programs do show up in the task bar. So I use alt-tab, but you can also just click on the Taskbar item too. Linux and Windows are becoming closed in functionality, but Linux price and security will trump it anytime