Twin directories of firefox:

[DIR]  ftp://ftp.hosteurope.de/mirror/archive.ubuntu.com/pool/universe/f/firefox/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/sourcemage/grimoire/codex/testing/xorg-modular/http/firefox/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/sourcemage/grimoire/codex/test/http/firefox/
[DIR]  ftp://ftp.nectec.or.th/.b/5/archive.ubuntu.com/ubuntu/pool/main/f/firefox/
[DIR]  ftp://ftp.funet.fi/.m/mirrors5/ftp.netbsd.org/pub/NetBSD/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.funet.fi/.m/mirrors3/archive.ubuntu.com/pool/main/f/firefox/
[DIR]  ftp://ftp.funet.fi/.m/mirrors3/archive.ubuntu.com/pool/universe/f/firefox/
[DIR]  ftp://ftp.hosteurope.de/mirror/archive.ubuntu.com/pool/main/f/firefox/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.ubuntu.com/ubuntu/pool/main/f/firefox/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.ubuntu.com/ubuntu/pool/universe/f/firefox/
[DIR]  ftp://ftp.gwdg.de/pub/FreeBSD/development/FreeBSD-CVS/ports/.old-saved/www/firefox/
[DIR]  ftp://ftp.za.freebsd.org/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/freebsd/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://ftp.tugraz.at/ftp.tu-graz.ac.at/.mirror-sites/mirror.inode.at/pool/universe/f/firefox/
[DIR]  ftp://ftp.su.se/pub/mirrors/archive.ubuntu.com/ubuntu/pool/main/f/firefox/
[DIR]  ftp://ftp.su.se/pub/mirrors/archive.ubuntu.com/ubuntu/pool/universe/f/firefox/
[DIR]  ftp://ftp.forest.impress.co.jp/pub/win/f/firefox/
[DIR]  ftp://ftp.cesnet.cz/.vol/archive.ubuntu.com/mirror/ubuntu/pool/main/f/firefox/
[DIR]  ftp://ftp.cesnet.cz/.vol/archive.ubuntu.com/mirror/ubuntu/pool/universe/f/firefox/
[DIR]  ftp://ftp.tugraz.at/ftp.tu-graz.ac.at/.mirror-sites/mirror.inode.at/pool/main/f/firefox/
[DIR]  ftp://ftp.uvsq.fr/pub/FreeBSD/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://ftp.esat.net/mirrors/.3/ftp.netbsd.org/pub/NetBSD/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.esat.net/mirrors/.1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://ftp.au.netbsd.org/pub/NetBSD/NetBSD-current/pkgsrc/www/firefox/
[DIR]  ftp://core.ring.gr.jp/pub/NetBSD/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.phys.ttu.edu/pub/ubuntu-mirror/pool/universe/f/firefox/
[DIR]  ftp://ftp.ankara.edu.tr/firefox/
[DIR]  ftp://ftp.lug.udel.edu/pub/freebsd/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-5.9/source/testing/net/firefox/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-5.9/source/testing/net/firefox/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-5.9/source/testing/x-apps/firefox/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-5.9/source/testing/x-apps/firefox/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/sunsite.unc-mirror/distributions/vectorlinux/veclinux-5.9/source/testing/x-apps/firefox/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.netbsd.org/pub/NetBSD/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.ac-grenoble.fr/cioftp/cio/bourgoin/ygourraud/CIDJ/CIDJ 2008/firefox/
[DIR]  ftp://ftp.udc.es/mirror/freebsd/development/FreeBSD-CVS/ports/www/firefox/
[DIR]  ftp://ftp.linuxforum.hu/mirrors/frugalware/pub/frugalware/frugalware-current/source/xapps/firefox/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/netbsd/packages/current-src/pkgsrc/www/firefox/
[DIR]  ftp://ftp.nz.kernel.org/pub/ubuntu/pool/universe/f/firefox/
[DIR]  ftp://ftp.nz.kernel.org/pub/ubuntu/pool/main/f/firefox/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/sunsite.unc-mirror/distributions/sourcemage/grimoire/codex/stable-rc/http/firefox/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/sourcemage/grimoire/codex/stable-rc/http/firefox/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/sourcemage/grimoire/codex/stable/http/firefox/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/sunsite.unc-mirror/distributions/ultima/ultimalinux-current/source/X11Apps/firefox/
[DIR]  ftp://ftp.linuxforum.hu/mirrors/frugalware/pub/other/people/bouleetbil/bouleetbilppc/source/xapps/firefox/
[DIR]  ftp://ftp.linuxforum.hu/mirrors/frugalware/pub/frugalware/frugalware-0.8/source/xapps/firefox/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/sunsite.unc-mirror/distributions/sourcemage/grimoire/codex/stable/http/firefox/