dpkg-deb -c firefox_45.0+build2-0ubuntu0.12.04.1_amd64.deb
mostrará os arquivos na ordem em que os arquivos são processados ...
drwxr-xr-x root/root 0 2016-03-04 14:06 ./
drwxr-xr-x root/root 0 2016-03-04 14:08 ./etc/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./etc/apparmor.d/
-rw-r--r-- root/root 4984 2016-03-04 12:51 ./etc/apparmor.d/usr.bin.firefox
drwxr-xr-x root/root 0 2016-03-04 13:56 ./etc/apparmor.d/disable/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./etc/apport/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./etc/apport/native-origins.d/
-rw-r--r-- root/root 103 2016-03-04 14:08 ./etc/apport/native-origins.d/firefox
drwxr-xr-x root/root 0 2016-03-04 14:08 ./etc/apport/blacklist.d/
-rw-r--r-- root/root 59 2016-03-04 14:08 ./etc/apport/blacklist.d/firefox
drwxr-xr-x root/root 0 2016-03-04 14:08 ./etc/firefox/
-rw-r--r-- root/root 163 2016-03-04 12:33 ./etc/firefox/syspref.js
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/bin/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox-addons/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox-addons/searchplugins/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox-addons/plugins/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox-addons/distribution/
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox-addons/distribution/extensions/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox-addons/extensions/
-rw-r--r-- root/root 3373 2016-03-04 13:57 ./usr/lib/firefox-addons/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi
drwxr-xr-x root/root 0 2016-03-04 14:21 ./usr/lib/firefox/
-rw-rw-r-- root/root 899 2016-03-04 14:21 ./usr/lib/firefox/libsoftokn3.chk
-rw-r--r-- root/root 640448 2016-03-04 14:11 ./usr/lib/firefox/libnssckbi.so
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/gmp-clearkey/
drwxr-xr-x root/root 0 2016-03-04 14:11 ./usr/lib/firefox/gmp-clearkey/0.1/
-rw-r--r-- root/root 116 2016-03-04 13:45 ./usr/lib/firefox/gmp-clearkey/0.1/clearkey.info
-rw-r--r-- root/root 55184 2016-03-04 14:11 ./usr/lib/firefox/gmp-clearkey/0.1/libclearkey.so
-rw-r--r-- root/root 127 2016-03-04 13:44 ./usr/lib/firefox/dependentlibs.list
-rw-r--r-- root/root 628488 2016-03-04 14:11 ./usr/lib/firefox/libmozsqlite3.so
-rwxr-xr-x root/root 252120 2016-03-04 14:11 ./usr/lib/firefox/plugin-container
-rw-r--r-- root/root 59280 2016-03-04 14:11 ./usr/lib/firefox/liblgpllibs.so
-rw-rw-r-- root/root 898 2016-03-04 14:21 ./usr/lib/firefox/libnssdbm3.chk
-rw-r--r-- root/root 825 2016-03-04 10:41 ./usr/lib/firefox/Throbber-small.gif
-rwxr-xr-x root/root 121040 2016-03-04 14:11 ./usr/lib/firefox/firefox
-rw-r--r-- root/root 232400 2016-03-04 14:11 ./usr/lib/firefox/libsoftokn3.so
-rw-r--r-- root/root 18344 2016-03-04 14:11 ./usr/lib/firefox/libplc4.so
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/distribution/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/distribution/searchplugins/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/distribution/searchplugins/locale/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/distribution/searchplugins/locale/en-US/
-rw-r--r-- root/root 1613 2016-03-04 14:08 ./usr/lib/firefox/distribution/searchplugins/locale/en-US/amazondotcom.xml
-rw-r--r-- root/root 1891 2016-03-04 14:08 ./usr/lib/firefox/distribution/searchplugins/locale/en-US/ddg.xml
-rw-r--r-- root/root 1245 2016-03-04 14:08 ./usr/lib/firefox/distribution/searchplugins/locale/en-US/google.xml
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox/distribution/searchplugins/common/
-rw-r--r-- root/root 189 2016-03-04 12:33 ./usr/lib/firefox/distribution/distribution.ini
-rw-r--r-- root/root 569 2016-03-04 12:52 ./usr/lib/firefox/application.ini
-rw-r--r-- root/root 137712 2016-03-04 14:11 ./usr/lib/firefox/libsmime3.so
-rw-r--r-- root/root 161760 2016-03-04 14:11 ./usr/lib/firefox/libnssutil3.so
-rw-r--r-- root/root 120808 2016-03-04 14:11 ./usr/lib/firefox/libnssdbm3.so
-rwxr-xr-x root/root 63456 2016-03-04 14:11 ./usr/lib/firefox/crashreporter
-rw-r--r-- root/root 46 2016-03-04 13:45 ./usr/lib/firefox/platform.ini
-rw-r--r-- root/root 4003 2016-03-04 10:41 ./usr/lib/firefox/crashreporter.ini
-rw-r--r-- root/root 246216 2016-03-04 14:11 ./usr/lib/firefox/libnspr4.so
-rwxr-xr-x root/root 141528 2016-03-04 14:11 ./usr/lib/firefox/webapprt-stub
-rw-r--r-- root/root 485368 2016-03-04 14:11 ./usr/lib/firefox/libfreebl3.so
-rwxr-xr-x root/root 2667 2016-03-04 12:51 ./usr/lib/firefox/firefox.sh
-rw-rw-r-- root/root 899 2016-03-04 14:21 ./usr/lib/firefox/libfreebl3.chk
-rw-r--r-- root/root 77983480 2016-03-04 14:11 ./usr/lib/firefox/libxul.so
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/webapprt/
-rw-r--r-- root/root 487 2016-03-04 13:45 ./usr/lib/firefox/webapprt/webapprt.ini
-rw-r--r-- root/root 75363 2016-03-04 13:57 ./usr/lib/firefox/webapprt/omni.ja
drwxr-xr-x root/root 0 2016-03-04 13:56 ./usr/lib/firefox/webapprt/extensions/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/webapprt/defaults/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/webapprt/defaults/preferences/
-rw-r--r-- root/root 87 2016-03-04 12:33 ./usr/lib/firefox/webapprt/defaults/preferences/vendor-webapprt.js
-rw-r--r-- root/root 8521125 2016-03-04 13:57 ./usr/lib/firefox/omni.ja
-rw-r--r-- root/root 983960 2016-03-04 14:11 ./usr/lib/firefox/libnss3.so
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/defaults/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/defaults/pref/
-rw-r--r-- root/root 245 2016-03-04 13:46 ./usr/lib/firefox/defaults/pref/channel-prefs.js
-rw-r--r-- root/root 3786 2016-03-04 12:33 ./usr/lib/firefox/defaults/pref/vendor-gre.js
-rw-r--r-- root/root 14280 2016-03-04 14:11 ./usr/lib/firefox/libplds4.so
-rw-r--r-- root/root 231760 2016-03-04 14:11 ./usr/lib/firefox/libssl3.so
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/browser/features/
-rw-r--r-- root/root 1276314 2016-03-04 13:57 ./usr/lib/firefox/browser/features/[email protected]
-rw-r--r-- root/root 40 2016-03-04 13:57 ./usr/lib/firefox/browser/chrome.manifest
-rw-r--r-- root/root 207840 2016-03-04 10:41 ./usr/lib/firefox/browser/blocklist.xml
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/browser/chrome/
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/browser/chrome/icons/
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/browser/chrome/icons/default/
-rw-r--r-- root/root 829 2016-03-04 10:41 ./usr/lib/firefox/browser/chrome/icons/default/default16.png
-rw-r--r-- root/root 2472 2016-03-04 10:41 ./usr/lib/firefox/browser/chrome/icons/default/default32.png
-rw-r--r-- root/root 4096 2016-03-04 10:41 ./usr/lib/firefox/browser/chrome/icons/default/default48.png
drwxr-xr-x root/root 0 2016-03-04 13:57 ./usr/lib/firefox/browser/icons/
-rw-r--r-- root/root 17225 2016-03-04 10:41 ./usr/lib/firefox/browser/icons/mozicon128.png
-rw-r--r-- root/root 12333896 2016-03-04 13:57 ./usr/lib/firefox/browser/omni.ja
drwxr-xr-x root/root 0 2016-03-04 14:11 ./usr/lib/firefox/browser/components/
-rw-r--r-- root/root 36 2016-03-04 13:57 ./usr/lib/firefox/browser/components/components.manifest
-rw-r--r-- root/root 51240 2016-03-04 14:11 ./usr/lib/firefox/browser/components/libbrowsercomps.so
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/defaults/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/defaults/preferences/
-rw-r--r-- root/root 382 2016-03-04 12:33 ./usr/lib/firefox/browser/defaults/preferences/vendor-firefox.js
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/share/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/share/pixmaps/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/share/apport/
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/share/apport/package-hooks/
-rw-r--r-- root/root 53946 2016-03-04 12:51 ./usr/share/apport/package-hooks/source_firefox.py
drwxr-xr-x root/root 0 2016-03-04 14:06 ./usr/share/lintian/
drwxr-xr-x root/root 0 2016-03-04 14:06 ./usr/share/lintian/overrides/
-rw-r--r-- root/root 180 2016-03-04 12:51 ./usr/share/lintian/overrides/firefox
drwxr-xr-x root/root 0 2016-03-04 14:08 ./usr/share/applications/
-rw-r--r-- root/root 9177 2016-03-04 12:51 ./usr/share/applications/firefox.desktop
drwxr-xr-x root/root 0 2016-03-04 14:06 ./usr/share/doc/
drwxr-xr-x root/root 0 2016-03-04 14:11 ./usr/share/doc/firefox/
-rw-r--r-- root/root 34975 2016-03-04 12:33 ./usr/share/doc/firefox/copyright
-rw-r--r-- root/root 1474 2016-03-04 14:37 ./usr/share/doc/firefox/changelog.Debian.gz
-rw-r--r-- root/root 633 2016-03-04 12:51 ./usr/share/doc/firefox/README.Debian
-rw-r--r-- root/root 9380 2016-03-04 12:33 ./usr/share/doc/firefox/MPL.gz
drwxr-xr-x root/root 0 2016-03-04 14:06 ./usr/share/man/
drwxr-xr-x root/root 0 2016-03-04 14:11 ./usr/share/man/man1/
-rw-r--r-- root/root 943 2016-03-04 14:06 ./usr/share/man/man1/firefox.1.gz
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/bin/firefox -> ../lib/firefox/firefox.sh
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/dictionaries -> ../../share/hunspell
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/distribution/extensions -> ../../firefox-addons/distribution/extensions
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/hyphenation -> ../../share/hyphen
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/searchplugins -> ../../firefox-addons/searchplugins
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/plugins -> ../../firefox-addons/plugins
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/extensions -> ../../firefox-addons/extensions
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/lib/firefox/browser/defaults/preferences/syspref.js -> /etc/firefox/syspref.js
lrwxrwxrwx root/root 0 2016-03-04 14:08 ./usr/share/pixmaps/firefox.png -> ../../lib/firefox/browser/icons/mozicon128.png
é o principal executável criado antes de outros arquivos necessários para usar o navegador como pretendido
Ele é instalado razoavelmente no final e os arquivos depois de copiados depois de "firefox" também são instalados antes do "firefox", então eu diria que sim.