Hi, please try to get a crash report. See crash section of https://wiki.ubuntu.com/MozillaTeam/Bugs?action=show&redirect=DebuggingFirefox to get instructions on how to do this.
Thanks! ** Changed in: firefox (Ubuntu) Importance: Undecided => High Assignee: (unassigned) => Mozilla Team ** Tags added: mt-needreport mt-needsummary -- firefox froze after pressing back button https://launchpad.net/bugs/86078 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs