Ok i got to testing this with daily PPA firefox i will test with 3.7 but i doubt it will have a difference.

gnomefreak@Development:~$ apt-cache policy firefox firefox-gnome-support xulrunner-1.9.1 chromium-browser firefox-3.7 firefox-3.7-gnome-support xulrunner-1.9.2
firefox:
  Installed: 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Candidate: 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Package pin: 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Version table:
 *** 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1 400
        500 http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
     3.6.3+nobinonly-0ubuntu4 400
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main Packages
firefox-gnome-support:
  Installed: 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Candidate: 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Package pin: 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Version table:
 *** 3.6.5~hg20100506r34169+nobinonly-0ubuntu1~umd1 400
        500 http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
     3.6.3+nobinonly-0ubuntu4 400
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main Packages
xulrunner-1.9.1:
  Installed: 1.9.1.11~hg20100506r26921+nobinonly-0ubuntu1~umd1
  Candidate: 1.9.1.11~hg20100506r26921+nobinonly-0ubuntu1~umd1
  Version table:
 *** 1.9.1.11~hg20100506r26921+nobinonly-0ubuntu1~umd1 0
        500 http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
chromium-browser:
  Installed: 6.0.400.0~svn20100510r46805-0ubuntu1~ucd1
  Candidate: 6.0.400.0~svn20100510r46805-0ubuntu1~ucd1
  Version table:
 *** 6.0.400.0~svn20100510r46805-0ubuntu1~ucd1 0
        500 http://ppa.launchpad.net/chromium-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
     5.0.342.9~r43360-0ubuntu2 0
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/universe Packages
firefox-3.7:
  Installed: 3.7~a5~hg20100506r41949+nobinonly-0ubuntu1~umd1
  Candidate: 3.7~a5~hg20100506r41949+nobinonly-0ubuntu1~umd1
  Version table:
 *** 3.7~a5~hg20100506r41949+nobinonly-0ubuntu1~umd1 0
        500 http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
firefox-3.7-gnome-support:
  Installed: 3.7~a5~hg20100506r41949+nobinonly-0ubuntu1~umd1
  Candidate: 3.7~a5~hg20100506r41949+nobinonly-0ubuntu1~umd1
  Version table:
 *** 3.7~a5~hg20100506r41949+nobinonly-0ubuntu1~umd1 0
        500 http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
xulrunner-1.9.2:
  Installed: 1.9.2.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Candidate: 1.9.2.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Package pin: 1.9.2.5~hg20100506r34169+nobinonly-0ubuntu1~umd1
  Version table:
 *** 1.9.2.5~hg20100506r34169+nobinonly-0ubuntu1~umd1 400
        500 http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
     1.9.2.3+nobinonly-0ubuntu2 400
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main Packages

Using Lucid packages for PPAs since we haven't built 10.10 in PPA yet. It will not make a difference for this bug
I wanted to add this info before I lost it due to testing other browsers. I will add info for all.