Firefox :Using client side browser window.open().focus()

[joe26]

When executing a solution from developer in IE, navigation is possible between windows.

Firefox and Chrome do not permit this.

I've attempted to use window.open(<server url>,<page title>).focus() and various permutations to attempt a focus on a selected page title within the application with no success.

Is a focus to another browser tab possible in Firefox?

Is this an options settings in Firefox? I've seen a reference to this, but cannot find it again.

Maybe turning off tabs within Firefox?

Is there a plugin for Firefox that permits programmatic access to tabs?

Thanks!
--Joe.