Can't install any web browser (Firfox+Chrome)

[Feras645]

I just tried to install a web browser on my MacPro, but after I down load the file and try to open it to install it gives me a Warning saying "No Mountable File Systems" on Both Firefox and Chrome! Other applications install normal.

Why?

 

[allan.nyholm]

I can't say why it happens, but on occasion it happens to me too. I usually either relaunch Finder or log out. The mother of all solutions is to reboot.

You can relaunch Finder by holding down Option and then right-click on the Finder icon in the Dock.

 

[Feras645]

Thanks Allan, it worked like magic