Playback mode within a Hikvision Cam - Firefox v Edge

[AnotherBrian]

As backup for zoneminder, i'm using a micro SD in my hikvision cam.
Microsoft Edge allows me to access Playback from within he camera.
Firefox does not (although liveview works). .

This may be an activeX issue........

Is there a work around? Edge (of course) runs on win. I'm using linux, so no edge. But firefox on win doesn't allow access to playback too. Notice someone said there is a very old addon called ff-activeX-host on github but it is really really old.

This is a new camera running 5.7 firmware on the hikvision cam.