On Sat, 16 Jun 2012 20:39:38 +0200 Julius Schwartzenberg <julius.schwartzenberg@...> wrote: > E. Liddell wrote: > > Note that Firefox 13 appears to need nspr 4.9.1 or better. > > Are you sure about that version number? Even Precise still has 4.8.9 and > Lucid has 4.8.6. I'm a Gentoo user, and 4.9.1 is what's specified by our package manager: akio ~ # cat /usr/portage/www-client/firefox/firefox-13.0.ebuild [...] RDEPEND=" >=sys-devel/binutils-2.16.1 >=dev-libs/nss-3.13.5 >=dev-libs/nspr-4.9.1 Also see https://bugzilla.mozilla.org/show_bug.cgi?id=713229 , which specifies nspr 4.9 for Firefox 12, and https://bugzilla.mozilla.org/show_bug.cgi?id=713936 . So, yes, 90%+ sure. However, I don't know if the version difference has anything to do with your bug or not (I'm still on Firefox 12 and tend to avoid Flash like the plague).