Firefox question - can I open a URL in a 'hidden' tab, or at least not move to the tab when opening it?

[Rick]

On Tue, 2015-02-17 at 19:47 +0000, Chris Green wrote:
> Is there any way in Firefox to 'open' a URL but not move to a tab to
> display it?
> 
> I want to open internet radio URLs without changing what Firefox
> shows, so either some sort of hidden TAB or simply a way of not going
> to tabs opening certain specific URLs would do what I want.
> 
> -- 
> Chris Green
> 
If Firefox can't do what you want, you might want to consider using
Opera, where you can right-click on a link and select "Open in
Background Tab".