[Android Firefox 116.3.0] about:config returns nothing, says Connection is not secure - eviltoast

How do I get to the about:config page? It says Connection is not secure. There is no popup which asks “if I am sure”.

What I tried already:

  • Disabled all extensions
  • Disabled all system wide tracker and ad blockers
  • Turned off HTTPS only mode
  • Turned off Enhanced Tracking Protection

Didnt know how to enter Safe mode in Firefox for Android. So couldn’t try that.

  • Wiped cache and all app settings using Android Settings:App menu.
  • Uninstalled Firefox.
  • Reboot Device.
  • Reinstalled Firefox.
  • about:config does same thing; no change.

This happens on both my Android Tablet and my Android Phone, both Samsung. Any ideas?