If the patch proposed upstream is a backport of the fix in firefox-4 then that seems like the right fix to me. I think this falls under the Package Maintainer responsibility[1]_ to deal with bugs in a timely manner rather than an FPC issue. Has anyone contacted stransky directly? If we're at an impasse then FESCo might need to step in to mediate, otherwise I think we should still be using common sense to try to straighten things out and get firefox patched.

.. _[1]: http://fedoraproject.org/wiki/Package_maintainer_responsibilities#Deal_with_reported_bugs_in_a_timely_manner

If the firefox maintainers want to ask for a bundling exception for libcairo they can but I wouldn't be inclined to grant it. Bundling copies of libraries that are older than the system copy and heavily patched (according to that bz) as well are not good candidates for bundling sSo I would want the firefox maintainers to be available to argue for that option if it's what they desire.

Closing