[INTERNAL] sap.m.Page: Focus outline in Firefox is now correctly displayed
[INTERNAL] sap.m.Page: Focus outline in Firefox is now correctly
displayed

In Firefox the visible focus outline
is no longer lost on the page content with scroll when using the TAB
key to navigate between elements. This change adds condition to target
only Firefox.

Change-Id: Ie7105ca67889ac1d071ffce64773d31a831544a3
BCP: 2080023882

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5