This problem occurs with either my current profile or with a clean profile. With flash-7.0.68 installed, FF will freeze when opening the inbox page of Gmail. I also had problems with web pages that had flash embedded in them, like www.anandtech.com. When netscape-flash is removed, the problem is gone. Here is a debug dump from FF before it crashes, but it doesn't tell me much other than the problem is with libflashplayer: ======================================= CSS Error (http://mail.google.com/mail/?view=page&name=gp&ver=sh3fib53pgpk&auto=1 :4.12301): Unknown property 'filter'. Declaration dropped. CSS Error (http://mail.google.com/mail/?view=page&name=gp&ver=sh3fib53pgpk&auto=1 :4.12582): Unknown property 'filter'. Declaration dropped. ###!!! ASSERTION: Don't call me!: 'Error', file nsDOMClassInfo.cpp, line 3303 Break: at file nsDOMClassInfo.cpp, line 3303 ###!!! ASSERTION: Don't call me!: 'Error', file nsDOMClassInfo.cpp, line 3303 Break: at file nsDOMClassInfo.cpp, line 3303 ###!!! ASSERTION: Don't call me!: 'Error', file nsDOMClassInfo.cpp, line 3303 Break: at file nsDOMClassInfo.cpp, line 3303 ###!!! ASSERTION: Don't call me!: 'Error', file nsDOMClassInfo.cpp, line 3303 Break: at file nsDOMClassInfo.cpp, line 3303 ###!!! ASSERTION: Don't call me!: 'Error', file nsDOMClassInfo.cpp, line 3303 Break: at file nsDOMClassInfo.cpp, line 3303 WARNING: NS_ENSURE_TRUE(NS_SUCCEEDED(rv)) failed, file nsScriptSecurityManager.cpp, line 862 For application/x-shockwave-flash found plugin /opt/netscape/plugins/libflashplayer.so ================================================================= At this point FF just freezes up and becomes unresponsive. It has to be killed externally. Here is my emerge --info: ================================================================= Portage 2.1.2_rc4-r5 (default-linux/x86/2006.0, gcc-4.1.1, glibc-2.5-r0, 2.6.20-rc2-mm1 i686) ================================================================= System uname: 2.6.20-rc2-mm1 i686 Intel(R) Pentium(R) 4 CPU 3.20GHz Gentoo Base System version 1.12.8 Last Sync: Fri, 05 Jan 2007 00:30:01 +0000 dev-java/java-config: 1.3.7, 2.0.31 dev-lang/python: 2.3.6, 2.4.4 dev-python/pycrypto: 2.0.1-r5 sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.19 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LINGUAS="en_US pt_BR" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/portage/local/layman/sunrise /usr/portage/local/layman/xeffects /usr/portage/local/layman/mozilla" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X acpi aim alsa apache2 apm arts berkdb bitmap-fonts cli cracklib crypt cups dbus dlloader dri eds emboss encode esd firefox foomaticdb gcj gdbm gif gnome gpm gstreamer gtk gtk2 hal iconv icq imlib isdnlog java javascript jpeg kde kerberos ldap libg++ libwww lm_sensors mad mikmod mono motif mp3 mpeg msn ncurses nls nptl nptlonly nsplugin objc objc++ ogg opengl oss pam pcre pda pdf perl png pppd python qt3 qt4 quicktime readline reflection samba sasl sdl session spell spl ssl tcltk tcpd truetype truetype-fonts type1-fonts udev vorbis wxwindows x86 xml xorg xv yahoo zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LINGUAS="en_US pt_BR" USERLAND="GNU" VIDEO_CARDS="nvidia" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
So try 9.0.21.78; we can't fix this anyway...