(Also many other Android devices has G2G ROM ported with working WiFi, 3G, etc.)
If Galaxy Nexus can run Firefox OS then why not JetDroid can't? I don't know does ZTE Blade have Firefox OS ported yet.
I have not checked the firefox OS files but maybe I should check them and to make it work if possible, it needs different kernel if not different kernel the other boot file or something like that?
I gonna check the files some day and if they are similar to android files then maybe I can try to port it..

Also Galaxy Nexus has CWM and fastboot flashable firefox OS: (build2).
With these working functions:
WiFi
DATA
3G
Boot
So if somebody want to try port it then try, it might boot and work somehow..

EDIT: Many files are almost same, app folder is missing and it does not have .apk files?
I think it doesn't need any other boot files just init files needs editing and some other files but not zImage..
So IF I gonna try to port is then I am not sure can it even boot because it doesn't work on Galaxy Nexus without flashing userdata.img via fastboot and JetDroid can't use fastboot...