I tried this with the version of thunderbird included in feisty, and could not reproduce. The original rss feed I had trouble with (for FreeBSD security advisories) seems to give http URLs now. I tried copying the rdf file to my own machine and changing the URLs to ftp, and thunderbird didn't crash when I clicked on them. However, it didn't open the links either; nothing happened when I clicked on them. It may be that the rdf file I created was broken in some way, but I'm not sure.
In any case I can no longer cause the crash. It would be easier to test if I could find another rss feed that links to ftp URLs. -- crashes when trying to open ftp.freebsd.org links from RSS reader https://launchpad.net/bugs/38271 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs