Where is the corresponding Firefox file on Debian Linux (AMD64)?

I was running Debian GNU/Linux on the AMD64 architecture.

"Where is the corresponding Firefox file?" I asked.

http://releases.mozilla.org/pub/mozilla.org/firefox/releases/

-> Version number, e.g. 17.0.1
-> linux-x86_64
-> language e.g. en-US
-> e.g. firefox-17.0.1.tar.bz2