iPrimus APN settings for Firefox OS
iPrimus Internet APN settings
Open the Settings app in Firefox OS.
Go to Cellular & Data, Turn on Data Connection.
Scroll down and tap Data Settings button and get the screen to enter the APN Settings.
On Firefox OS, APN settings should be entered in correct case. For example, if you are configuring your APN setting with iPrimus Internet APN settings configuration above, make sure you enter APN as primuslns1 and not as PRIMUSLNS1 or Primuslns1.