[Mozilla Enterprise] Popub blocker config with GPO requires entry for every port

[gerald]

Hi team,

we are still using FF ESR 60.9 on Windows 10 and have configured a 
setting via GPO to allow popups from servers in our domain

like https://app.acme.org with the intention to cover with this entry 
various servers in the enterprise.

Now we added  new SAP system running services  on 
https://sap01.app.acme.org:50001 and https://sap02.app.acme.org:50002

We thought that we allowed popups with the above rule but realized that 
we need to add additional rules specifying

entries https://app.acme.org:50001 and https://app.acme.org:50002 to not 
block the popups generated by the application.

Is this the expected behaviour?

Best regards

Gerald