I know the way to install software on Linux i.e.
These methods will only works until we have internet connection. Is there any way, so that I can download the software from one PC with internet, then take that software to the other PC without internet & install the software there, as we can do it in Windows OS?
I tried manually downloading firefox browser from its website & then I extracted it, I got a single firefox. When I clicked on it, firefox directly open, but not installed.