$ emerge mozilla-firefox * checking 451 files for package collisions existing file /usr/lib/nsbrowser/plugins/.keep is not owned by this package existing file /usr/lib/nsbrowser/plugins/libnullplugin.so is not owned by this package * spent 0.0768260955811 seconds checking for file collisions * This package is blocked because it wants to overwrite * files belonging to other packages (see messages above). * If you have no clue what this is all about report it * as a bug for this package on http://bugs.gentoo.org package net-www/mozilla-firefox-1.0-r3 NOT merged No package files given... Grabbing a set. $ emerge info Portage 2.0.51-r15 (default-linux/x86/2004.3, gcc-3.4.3, glibc-2.3.4.20041102-r0, 2.6.10-as3-edocker i686) ================================================================= System uname: 2.6.10-as3-edocker i686 Intel(R) Pentium(R) M processor 1500MHz Gentoo Base System version 1.6.9 Python: dev-lang/python-2.3.4-r1 [2.3.4 (#1, Feb 9 2005, 22:39:07)] ccache version 2.3 [enabled] dev-lang/python: 2.3.4-r1 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.9.4, 1.5, 1.8.5-r3, 1.6.3, 1.7.9-r1, 1.4_p6 sys-devel/binutils: 2.15.92.0.2-r2 sys-devel/libtool: 1.5.10-r4 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=pentium3 -fomit-frame-pointer -fstack-protector -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=pentium3 -fomit-frame-pointer -fstack-protector -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache collision-protect distlocks maketest sandbox sfperms test userpriv usersandbox" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo" LANG="de_DE" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X aalib acl acpi alsa apache2 bash-completion bitmap-fonts caca cdr crypt cups dlloader dvd dvdr eds encode esd evo fam flac gif gimpprint gnome gnomedb gstreamer gtk2 gtkhtml hal hbci howl imlib2 ipv6 ithreads jpeg mad mmx mng mono moznocompose moznoirc moznomail mozsvg mpeg mpeg4 mysql ncurses nls nptl nptlonly oggvorbis opengl openssh pam pcmcia png python samba session spell sse sse2 ssl svg threads tiff truetype truetype-fonts type1-fonts unicode usb userlocales wmf xv zlib linguas_GER" Unset: ASFLAGS, CBUILD, CTARGET, LC_ALL, LDFLAGS
*** Bug 99707 has been marked as a duplicate of this bug. ***
This happens also the other way around: [ebuild N ] www-client/mozilla-firefox-bin-1.0.6 +gnome 8,030 kB [...] * checking 312 files for package collisions existing file /usr/lib/nsbrowser/plugins/.keep is not owned by this package existing file /usr/lib/nsbrowser/plugins/libnullplugin.so is not owned by this package * spent 0.0532579421997 seconds checking for file collisions * This package is blocked because it wants to overwrite * files belonging to other packages (see messages above). * If you have no clue what this is all about report it * as a bug for this package on http://bugs.gentoo.org package www-client/mozilla-firefox-bin-1.0.6 NOT merged No package files given... Grabbing a set. $ epm -qf /usr/lib/nsbrowser/plugins/.keep /usr/lib/nsbrowser/plugins/libnullplugin.so mozilla-1.7.8-r1 mozilla-firefox-1.0.5-r1 mozilla-1.7.8-r1 mozilla-firefox-1.0.5-r1
ALL most versions are removed from tree re-open if problem is still there.