If this is about WebApps on Firefox OS then you should ask on https://lists.mozilla.org/listinfo/webapps

If this is about Firefox for Android you can install the Android app with the SDK adb command.

   adb install -r Firefox-Android-file.apk

Thank you for the reply , but I was looking on how to install WebApps on Firefox OS though command line

Hi vineesh, there is a way to install a Web app this way : https://developer.mozilla.org/en-US/d.../Apps.install However I would recommend reading more about how the development of apps work with the Introduction to Web Apps: https://developer.mozilla.org/en-US/A.../Intro_to_open_web_apps