Multiple Web Browsers not loading

[Forpli]

Do the icons of the browsers appear at taskbar when you launch them?

I'm wondering if they are opened outside the screen on a "phantom display" like in this thread here:

Brave Browser page not opening Z17.3

Hi folks, My first posting, having just installed Z 17.3 on an oldish Gigabyte laptop. So far things are about as I expected them to be. But Brave won't open its window. I can see it in the icon, but no accessible window. I've installed Firefox which works exactly as it should. I've uninstalled Brave, reinstalled it, but still no usable window. Any suggestions? best wishes, Peter