This issue is reproducible in both edge and feisty. Issue is still open upstream.
Dave ** Changed in: firefox (Ubuntu) Status: Needs Info => Confirmed -- Firefox high cpu when downloading a fle of an "unknown file size" https://launchpad.net/bugs/15166 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs