Please describe the problem:
Epiphany do not respect MIME setting specifing which application should be used.

Steps to reproduce:
1. Install gimp 2.6
2. Check if it is consider as a default pdf handler
3. Change the default pdf handler to evince (via nautilus)


Actual results:
Epiphany still tries to open downloaded pdf in gimp

Expected results:
To open it in evince

Does this happen every time?
At least with pdf

Other information:
Portage 2.2_rc12 (default/linux/x86/2008.0/developer, gcc-4.3.2, glibc-2.8_p20080602-r0, 2.6.26-gentoo-r1 i686)
=================================================================
System uname: Linux-2.6.26-gentoo-r1-i686-Intel-R-_Celeron-R-_M_processor_1.50GHz-with-gentoo-2.0.0
Timestamp of tree: Thu, 16 Oct 2008 02:04:01 +0000
ccache version 2.4 [enabled]
app-shells/bash:     3.2_p39
dev-java/java-config: 1.3.7, 2.1.6-r1
dev-lang/python:     2.5.2-r8, 2.6-r2
dev-util/ccache:     2.4-r8
sys-apps/baselayout: 2.0.0
sys-apps/openrc:     0.3.0-r1
sys-apps/sandbox:    1.2.18.1-r3
sys-devel/autoconf:  2.13, 2.63
sys-devel/automake:  1.4_p6, 1.5, 1.7.9-r1, 1.9.6-r2, 1.10.1-r1
sys-devel/binutils:  2.18-r3
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   2.2.6a
virtual/os-headers:  2.6.26
ACCEPT_KEYWORDS="x86 ~x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-Os -march=pentium-m -mfpmath=sse -pipe -momit-leaf-frame-pointer -ggdb -w -ftree-vectorize -ftree-loop-optimize -freorder-blocks-and-partition -fgcse-sm -fgcse-las -fgcse-after-reload -ftracer -maccumulate-outgoing-args"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-Os -march=pentium-m -mfpmath=sse -pipe -momit-leaf-frame-pointer -ggdb -w -ftree-vectorize -ftree-loop-optimize -freorder-blocks-and-partition -fgcse-sm -fgcse-las -fgcse-after-reload -ftracer -maccumulate-outgoing-args -fvisibility-inlines-hidden"
DISTDIR="/var/tmp/distfiles"
FEATURES="ccache collision-protect cvs digest distlocks multilib-strict parallel-fetch prelink preserve-libs protect-owned sandbox sfperms sign splitdebug stricter unmerge-orphans userfetch userpriv usersandbox"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LANG="en_US.UTF-8"
LC_ALL="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--add-needed -Wl,--as-needed -Wl,--hash-style=both -Wl,--sort-common"
LINGUAS="en_GB en_US pl"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/java-overlay /usr/portage/local/layman/x11 /usr/portage/local/layman/zen-overlay /usr/portage/local/layman/my-gnome /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X aac acl acpi alsa applet attr avahi avalon bash-completion berkdb bittorrent boo browseplugin bzip2 c++ cairo calendar caps cddb cdparanoia cdr cli clisp context cracklib crypt cups curl curlwrappers cxx d daap dbus deskbar detex devhelp disk-partition djvu docbook dri dvd dvdnav dvdr dvdread eclipse eds emacs emboss encode eog epiphany esd evo evolution exif expat extra fam ffmpeg flac flash fortran fuse galago gconf gd gdbm gdl gedit gif gimp git glib glut gmail gmp gnome gnome-keyring gnutls gpm gsf gstreamer gtk guile hal iconv idle imap inherit-graph inotify ipod iproute2 ipv6 isdnlog jabber java java5 java6 jingle jpeg jpeg2k jython kerberos keyring kqemu laptop latex libburn libffi libgda libnotify libsexy logrotate lucene mad maildir mailwrapper mhash midi mikmod mmap mmx mono moonlight mozilla mp3 mpeg mudflap mule musicbrainz nautilus ncurses network networkmanager nls nntp no-old-linux nptl nptlonly nsplugin ntpl ogg oggvorbis openal opengl openmp pam pango pbm pccts pch pcre pda pdf perl png policykit pop postgres ppds pppd pulseaudio python qt3support quicktime raw readline reflection regex reiserfs resolvconf rhino ruby samba scanner science sdl session snmp soap soup sourceview spell spl sqlite sqlite3 sse sse2 ssh ssl startup-notification subversion svg symlink sysfs syslog tcpd tetex theora threads threadsafe tiff timidity totem tracker trayicon truetype unicode usb valgrind vim vorbis vte wifi win32codecs wxwindows x86 xattr xcb xforms xhtml xml xml2 xorg xsl xslt xulrunner xv zeroconf zlib" ALSA_CARDS="atiixp" ALSA_PCM_PLUGINS="null empty dmix dshare ioplug" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CAMERAS="panasonic" ELIBC="glibc" INPUT_DEVICES="evdev mouse keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_GB en_US pl" USERLAND="GNU" VIDEO_CARDS="radeon"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Backend: Xulrunner 1.9