Failed to Connect to Firefox WebIDE. Update the connected Runtime

[Abdullah Noman]

I have the developer mode Enabled but the option Nokia 8110 4G is also showing in the WebIDE menu, but when I click to connect to it, it shows the message:

The connected runtime has an old version (48.02a). The minimum supported version is (52.01a). This is an unsupported setup and may cause DevTools to fail. Please update the connected runtime

I also tried to connect it via remote runtime by adb forward with a tcp port but it also shows the same type of message.

I checked in the Device> More Information> Platform Version > 48.02a

Please help to update my runtime.

[Ivan]

You must using Firefox ESR 52.9. New Firefox versions give you the error. Look here.

[Abdullah Noman]

Now it says firefox is backdated and the connected runtime is very advance so please update firefox

[Ivan]

I had the same problem. Have you tryed to reboot your phone? Only Firefox ESR 52.9 can read the phone with all the settings that you can change. The localhost must be set at 6000. All the os is based on Firefox 48.02a. You can't change this. The OS is a fork of Firefox OS and the last version, 2.6, was based on Firefox 45 (year 2016).