As explained in bug 615213, the nsIGlobalHistory interface has been removed. We need to flag all instances of this interface and show an error. This is a compatibility error, so the add-on should not be upgraded in this case. Message: The nsIGlobalHistory interface has been removed. You can use nsIGlobalHistory2 instead. See <LINK> for more information. Link: https://bugzilla.mozilla.org/show_bug.cgi?id=615213 Affected add-on: https://addons.mozilla.org/en-US/firefox/addon/chatzilla/ I'm setting the milestone for the 23rd because the final release is scheduled for the 28th. I understand if we can't make it for the 23rd, but it'd be great to do the bump before the release date.
verified fixed at https://addons-dev.allizom.org/en-US/developers/upload/3e837bae9dc64c8393a872d7fa98cc4e