Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
MozillaFirefox
MozillaFirefox(x86-32)
appdata()
appdata(firefox.appdata.xml)
application()
application(firefox.desktop)
firefox
firefox
metainfo()
metainfo(firefox.appdata.xml)
mimehandler(application/vnd.mozilla.xul+xml)
mimehandler(application/x-xpinstall)
mimehandler(application/xhtml+xml)
mimehandler(text/html)
mimehandler(text/mml)
mimehandler(text/xml)
mimehandler(x-scheme-handler/http)
mimehandler(x-scheme-handler/https)
mozilla-kde4-version
web_browser

Requires :

/bin/sh
/bin/sh
/bin/sh
MozillaFirefox-branding >= 68
coreutils
desktop-file-utils
desktop-file-utils
ld-linux.so.2
ld-linux.so.2(GLIBC_2.1)
ld-linux.so.2(GLIBC_2.3)
libX11-xcb.so.1
libX11.so.6
libXcomposite.so.1
libXdamage.so.1
libXext.so.6
libXfixes.so.3
libXrandr.so.2
libasound.so.2
libasound.so.2(ALSA_0.9)
libatk-1.0.so.0
libc.so.6
libc.so.6(GLIBC_2.0)
libc.so.6(GLIBC_2.1)
libc.so.6(GLIBC_2.1.1)
libc.so.6(GLIBC_2.1.2)
libc.so.6(GLIBC_2.1.3)
libc.so.6(GLIBC_2.10)
libc.so.6(GLIBC_2.11)
libc.so.6(GLIBC_2.15)
libc.so.6(GLIBC_2.16)
libc.so.6(GLIBC_2.17)
libc.so.6(GLIBC_2.18)
libc.so.6(GLIBC_2.2)
libc.so.6(GLIBC_2.2.4)
libc.so.6(GLIBC_2.25)
libc.so.6(GLIBC_2.27)
libc.so.6(GLIBC_2.28)
libc.so.6(GLIBC_2.29)
libc.so.6(GLIBC_2.3)
libc.so.6(GLIBC_2.3.2)
libc.so.6(GLIBC_2.3.3)
libc.so.6(GLIBC_2.3.4)
libc.so.6(GLIBC_2.32)
libc.so.6(GLIBC_2.33)
libc.so.6(GLIBC_2.34)
libc.so.6(GLIBC_2.36)
libc.so.6(GLIBC_2.38)
libc.so.6(GLIBC_2.4)
libc.so.6(GLIBC_2.6)
libc.so.6(GLIBC_2.7)
libc.so.6(GLIBC_2.8)
libc.so.6(GLIBC_2.9)
libc.so.6(GLIBC_ABI_DT_RELR)
libcairo-gobject.so.2
libcairo.so.2
libdbus-1.so.3
libdbus-1.so.3(LIBDBUS_1_3)
libfontconfig.so.1
libfreetype.so.6
libfreetype6 >= 2.13.2
libgcc_s.so.1
libgcc_s.so.1(GCC_3.0)
libgcc_s.so.1(GCC_3.3)
libgcc_s.so.1(GCC_4.2.0)
libgcc_s.so.1(GCC_7.0.0)
libgcc_s.so.1(GLIBC_2.0)
libgdk-3.so.0
libgdk_pixbuf-2.0.so.0
libgio-2.0.so.0
libglib-2.0.so.0
libgobject-2.0.so.0
libgtk-3.so.0
libm.so.6
libm.so.6(GLIBC_2.0)
libm.so.6(GLIBC_2.1)
libm.so.6(GLIBC_2.2)
libm.so.6(GLIBC_2.27)
libm.so.6(GLIBC_2.29)
libm.so.6(GLIBC_2.35)
libnspr4.so
libnss3.so
libnss3.so(NSS_3.10)
libnss3.so(NSS_3.101)
libnss3.so(NSS_3.11)
libnss3.so(NSS_3.11.2)
libnss3.so(NSS_3.12)
libnss3.so(NSS_3.12.4)
libnss3.so(NSS_3.12.5)
libnss3.so(NSS_3.13)
libnss3.so(NSS_3.13.2)
libnss3.so(NSS_3.15)
libnss3.so(NSS_3.16.1)
libnss3.so(NSS_3.16.2)
libnss3.so(NSS_3.19)
libnss3.so(NSS_3.2)
libnss3.so(NSS_3.21)
libnss3.so(NSS_3.22)
libnss3.so(NSS_3.3)
libnss3.so(NSS_3.30)
libnss3.so(NSS_3.4)
libnss3.so(NSS_3.45)
libnss3.so(NSS_3.47)
libnss3.so(NSS_3.5)
libnss3.so(NSS_3.52)
libnss3.so(NSS_3.55)
libnss3.so(NSS_3.58)
libnss3.so(NSS_3.6)
libnss3.so(NSS_3.7)
libnss3.so(NSS_3.79)
libnss3.so(NSS_3.8)
libnss3.so(NSS_3.9)
libnss3.so(NSS_3.9.2)
libnss3.so(NSS_3.9.3)
libnssutil3.so
libnssutil3.so(NSSUTIL_3.12)
libnssutil3.so(NSSUTIL_3.12.3)
libnssutil3.so(NSSUTIL_3.12.5)
libnssutil3.so(NSSUTIL_3.13)
libnssutil3.so(NSSUTIL_3.15)
libpango-1.0.so.0
libplc4.so
libproxy.so.1
libproxy.so.1(LIBPROXY_0.4.16)
libsmime3.so
libsmime3.so(NSS_3.13)
libsmime3.so(NSS_3.16)
libsmime3.so(NSS_3.2)
libsmime3.so(NSS_3.4)
libssl3.so
libssl3.so(NSS_3.12.6)
libssl3.so(NSS_3.13)
libssl3.so(NSS_3.13.2)
libssl3.so(NSS_3.14)
libssl3.so(NSS_3.15)
libssl3.so(NSS_3.15.4)
libssl3.so(NSS_3.2)
libssl3.so(NSS_3.21)
libssl3.so(NSS_3.22)
libssl3.so(NSS_3.23)
libssl3.so(NSS_3.27)
libssl3.so(NSS_3.28)
libssl3.so(NSS_3.30.0.1)
libssl3.so(NSS_3.33)
libssl3.so(NSS_3.4)
libssl3.so(NSS_3.80)
libstdc++.so.6
libstdc++.so.6(CXXABI_1.3)
libstdc++.so.6(CXXABI_1.3.5)
libstdc++.so.6(GLIBCXX_3.4)
libstdc++.so.6(GLIBCXX_3.4.11)
libstdc++.so.6(GLIBCXX_3.4.14)
libstdc++.so.6(GLIBCXX_3.4.15)
libstdc++.so.6(GLIBCXX_3.4.18)
libstdc++.so.6(GLIBCXX_3.4.20)
libstdc++.so.6(GLIBCXX_3.4.21)
libstdc++.so.6(GLIBCXX_3.4.22)
libstdc++.so.6(GLIBCXX_3.4.26)
libstdc++.so.6(GLIBCXX_3.4.29)
libstdc++.so.6(GLIBCXX_3.4.30)
libstdc++.so.6(GLIBCXX_3.4.32)
libstdc++.so.6(GLIBCXX_3.4.9)
libxcb-shm.so.0
libxcb.so.1
libz.so.1
libz.so.1(ZLIB_1.2.0)
libz.so.1(ZLIB_1.2.3.4)
mozilla-nspr >= 4.35
mozilla-nss >= 3.104
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PartialHardlinkSets) <= 4.0.4-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1
shared-mime-info
shared-mime-info

Content of RPM :
/usr/bin/firefox
/usr/lib/firefox
/usr/lib/firefox/application.ini
/usr/lib/firefox/browser
/usr/lib/firefox/browser/chrome
/usr/lib/firefox/browser/chrome/icons
/usr/lib/firefox/browser/chrome/icons/default
/usr/lib/firefox/browser/chrome/icons/default/default128.png
/usr/lib/firefox/browser/chrome/icons/default/default16.png
/usr/lib/firefox/browser/chrome/icons/default/default22.png
/usr/lib/firefox/browser/chrome/icons/default/default24.png
/usr/lib/firefox/browser/chrome/icons/default/default256.png
/usr/lib/firefox/browser/chrome/icons/default/default32.png
/usr/lib/firefox/browser/chrome/icons/default/default48.png
/usr/lib/firefox/browser/chrome/icons/default/default64.png
/usr/lib/firefox/browser/defaults
/usr/lib/firefox/browser/defaults/preferences
/usr/lib/firefox/browser/defaults/preferences/firefox.js
/usr/lib/firefox/browser/features
/usr/lib/firefox/browser/features/[email protected]
/usr/lib/firefox/browser/features/[email protected]
/usr/lib/firefox/browser/features/[email protected]
/usr/lib/firefox/browser/features/[email protected]
/usr/lib/firefox/browser/features/[email protected]
/usr/lib/firefox/browser/omni.ja
/usr/lib/firefox/crashreporter
/usr/lib/firefox/defaults
/usr/lib/firefox/defaults/pref
/usr/lib/firefox/defaults/pref/channel-prefs.js
/usr/lib/firefox/defaults/pref/spellcheck.js
There is 67 files more in these RPM.