Hello spode, i think for firefox 26 and above you need version 1.2 and above (1.1 can only be installed on Firefox 24 or Firefox 25.)

see : https://developer.mozilla.org/en-US/docs/Tools/Firefox_OS_1.1_Simulator

https://hacks.mozilla.org/2013/10/introducing-the-firefox-os-app-manager/

https://ftp.mozilla.org/pub/mozilla.org/labs/fxos-simulator/

https://developer.mozilla.org/en-US/Firefox_OS/Using_the_App_Manager

thank you

No, Firefox OS Simulator 1.2 is not launched...But now it is recognized by App Manager.

Do you see any errors if you open the Browser Console (Tools -> Web Developer -> Browser Console) after trying to start the simulator?

Are you on a 32 bit or 64 bit OS (from uname -a)? Is your installation of Firefox itself 32 bit or 64 bit (check output of "file /usr/lib/firefox/firefox" or a similar command based on where Firefox is installed)?

I am on a 32 bit Opensuse 13.1 and my installation of Firefox is the default one. So I would hope it is the 32 bit one.

This is the message that I obtain with App Manager: "22:17:55: Found simulator: Firefox OS 1.2 22:17:55: Starting simulator... 22:17:55: Simulator ready. Connecting. 22:17:55: connecting to localhost:42039 22:18:15: connection timeout. Possible causes: didn't click on 'accept' (prompt). 22:18:15: disconnecting 22:18:15: disconnected"

and this is the error within Console: "Il box XUL per l'elemento hbox contiene un elemento figlio inline #text, tutti gli elementi figlio verranno forzati in un blocco. line 3 about:app-manager" (it is italian)

Okay, thanks for that info.

You're not the only Linux user having trouble, as there have been some other reports of this. Please follow this bug as we work to resolve the issue.