Firefox on Android is a thing, and has a column for support, but unlike Chrome on Android it doesn't include Daydream, Cardboard, and Samsung Gear VR in the list.
An alternative would be to create a new Firefox (mobile) entry that only lists Android and iOS support, and would be limited to Daydream, Cardboard, and Samsung Gear VR.
Firefox on Android is a thing, and has a column for support, but unlike Chrome on Android it doesn't include Daydream, Cardboard, and Samsung Gear VR in the list.
An alternative would be to create a new Firefox (mobile) entry that only lists Android and iOS support, and would be limited to Daydream, Cardboard, and Samsung Gear VR.