Thank you, Joseph. This should be made the default for all package upgrades and new installs until this bug is conclusively fixed.
By the way, using libdbusmenu-qt2 0.9.2+13.10.20130826-0ubuntu1 (version number bloat, anyone?) from Saucy has NOT fixed the bug. After a few hours, the menus have stopped working again, immediately after I opened a menu from the add-on bar. The menu's outline is visible for a split second longer than it was when it was failing before, but it still fails, and I still have to restart Firefox.
Thank you, Joseph. This should be made the default for all package upgrades and new installs until this bug is conclusively fixed.
By the way, using libdbusmenu-qt2 0.9.2+13. 10.20130826- 0ubuntu1 (version number bloat, anyone?) from Saucy has NOT fixed the bug. After a few hours, the menus have stopped working again, immediately after I opened a menu from the add-on bar. The menu's outline is visible for a split second longer than it was when it was failing before, but it still fails, and I still have to restart Firefox.