I have now traced the problem to the extension LiveClick 0.2.0
and filed this behaviour with the developer. It was probably triggered by an update to that extension that was simultaneous with the Firefox upgrade. Kindly close this bug. -- Firefiox Live Bookmark Popup is slow https://launchpad.net/bugs/61991 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs