I had the same installLocation problem, unable to install new extensions, and removing my extensions.rdf fixed the problem.
Oddly enough, I noticed a side effect: switching the UI from English to German. I installed Ubuntu in German but for some reason Firefox was in English, maybe because the profile comes from a distro that I installed in English . Here is the chronology of what I did : 1) Ubuntu in German, Firefox in English 2) I try to install an add-on https://addons.mozilla.org/en-US/firefox/addon/1916 3) I get the installLocation error 4) I look up and find the trick on this page 5) I close Firefox 6) I delete extensions.rdf 7) I restart Firefox 8) I install the add-on successfully 9) I restart Firefox 10) I notice that Firefox's menus look a bit unfamiliar. Indeed, they are in German instead of English I don't mind having Firefox in German, it's better, but I find it surprising, maybe the removal trick has some side effects. -- "installLocation has no properties" error in nsExtensionManager.js during install/update of extensions https://bugs.launchpad.net/bugs/65609 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
