I've got mozilla-firefox-1.0_pre-r2 and mozilla-thunderbird 0.8. If I click the link of the attached HTML inside firefox, it appears corrupted in thunderbird. I've tested it with Konqueror+KMail and it works. $ emerge info Portage 2.0.51-r2 (default-x86-1.4, gcc-3.3.4, glibc-2.3.4.20040808-r1, 2.6.9-gentoo-r1 i686) ================================================================= System uname: 2.6.9-gentoo-r1 i686 AMD Athlon(TM) XP 2000+ Gentoo Base System version 1.4.16 Autoconf: sys-devel/autoconf-2.59-r5 Automake: sys-devel/automake-1.8.5-r1 Binutils: sys-devel/binutils-2.14.90.0.8-r1 Headers: sys-kernel/linux26-headers-2.6.8.1 Libtools: sys-devel/libtool-1.5.2-r5 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O3 -pipe -march=athlon-xp -fforce-addr -fomit-frame-pointer -falign-functions=4 -mfpmath=sse" CHOST="i686-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O3 -pipe -march=athlon-xp -fforce-addr -fomit-frame-pointer -falign-functions=4 -mfpmath=sse" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache digest distcc distlocks fixpackages sandbox userpriv" GENTOO_MIRRORS="http://gentoo.osuosl.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="3dnow X X509 aalib alsa apache2 apm avi berkdb bitmap-fonts bonobo cdparanoia cdr chroot crypt cscope cups curl dga directfb doc dv dvb dvd dvdr encode erandom esd extensions f77 faad fbcon flac flash foomaticdb gd gdbm ggi gif gimpprint gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile ieee1394 imap imlib innodb ipv6 java jikes joystick jpeg kde kerberos krb4 lcms ldap libcaca libg++ libwww live lzo mad mcal md5sum memlimit mikmod mmx mng motif mozilla moznoirc mozp3p mozsvg mpeg mpimysql ncurses network nls nptl nvidia odbc offensive oggvorbis opengl pam parse-clocks pdflib perl pic png ppds prelude python qt quicktime readline rtc samba scanner sdl skey slang slp sndfile snmp socks5 speex spell sqlite sse ssl svga tcltk tcpd tetex tga theora tiff truetype usb v4l v4l2 vim-with-x wmf wxwindows x86 xchattext xml xml2 xmms xprint xv xvid yaz zlib linguas_it"
Created attachment 42481 [details] sample link
It isn't the length, it's the %F9 8-bit ASCII character. Please take this upstream, not something we'll fix at the distribution level.