I dont know what installjammer is, but you can install XPI's through Firefox => Addons => Wrench => Install Addon from file

thanks a lot..but i need steps to install the .xpi file through installjammer in mozilla firefox..any help would be appreciated.

So you want this addon to come with firefox?

No. InstallJammer is a multiplatform GUI installer and builder designed to be completely cross-platform and function on Windows and most all versions of UNIX with eventual support for Mac OS X. i want to install a .xpi file through installjammer on mozilla

You have not given details of your OS, version of Firefox, or what you are actually installing. Presumably you intend developing and distributing something for Firefox, and installing this using installjammer

• http://en.wikipedia.org/wiki/InstallJammer

This is not within the scope of this forum. I suggest you try elsewhere. Perhaps you may be able to discuss this on one of the the Add-ons fora

• https://forums.mozilla.org/addons/

P.S. I note your last question was regarding installing a .xpi using the comandline /questions/969832

Thanks for the link. The xpi file seems to work through cmd but still no success with installjammer. Any help would be appreciated.