Mozilla contributor David Bloom reported that the browser's session restore feature can be used to violate the same-origin policy and run JavaScript in the context of another site.
This is now public: http://www.mozilla.org/security/announce/2008/mfsa2008-53.html
firefox-2.0.0.18-1.fc8, epiphany-2.20.3-8.fc8, epiphany-extensions-2.20.1-11.fc8, blam-1.8.3-19.fc8, cairo-dock-1.6.3.1-1.fc8.1, chmsee-1.0.0-5.31.fc8, devhelp-0.16.1-11.fc8, evolution-rss-0.0.8-13.fc8, galeon-2.0.4-6.fc8.3, gnome-python2-extras-2.19.1-19.fc8, gnome-web-photo-0.3-14.fc8, kazehakase-0.5.6-1.fc8.1, liferea-1.4.15-5.fc8, Miro-1.2.7-2.fc8, openvrml-0.17.10-2.0.fc8, ruby-gnome2-0.17.0-3.fc8, yelp-2.20.0-14.fc8, seamonkey-1.1.13-1.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.
xulrunner-1.9.0.4-1.fc9, firefox-3.0.4-1.fc9, epiphany-extensions-2.22.1-5.fc9, epiphany-2.22.2-5.fc9, cairo-dock-1.6.3.1-1.fc9.1, chmsee-1.0.1-6.fc9, devhelp-0.19.1-6.fc9, evolution-rss-0.1.0-4.fc9, galeon-2.0.7-3.fc9, gnome-python2-extras-2.19.1-21.fc9, gnome-web-photo-0.3-15.fc9, google-gadgets-0.10.1-5.fc9.1, gtkmozembedmm-1.4.2.cvs20060817-22.fc9, kazehakase-0.5.6-1.fc9.1, Miro-1.2.7-2.fc9, mozvoikko-0.9.5-4.fc9, mugshot-1.2.2-3.fc9, ruby-gnome2-0.17.0-3.fc9, totem-2.23.2-8.fc9, yelp-2.22.1-6.fc9, seamonkey-1.1.13-1.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.
This was addressed via: Red Hat Enterprise Linux version 2.1 (seamonkey) RHSA-2008:0977 Red Hat Enterprise Linux version 3 (seamonkey) RHSA-2008:0977 Red Hat Enterprise Linux version 4 (seamonkey) RHSA-2008:0977 Red Hat Enterprise Linux version 4 (firefox) RHSA-2008:0978 Red Hat Enterprise Linux version 5 (firefox) RHSA-2008:0978