At an almost stable Gentoo Linux I sometimes get (HTTPS evereywhere 3.0.4): tfoerste@n22 ~ $ firefox info: Error while loading localization: There is no localization file for your language. error: An exception occurred. Traceback (most recent call last): File "re[/jid1-f9uj2thwoam5gq-at-jetpack/api-utils/lib/system/events.js",](/jid1-f9uj2thwoam5gq-at-jetpack/api-utils/lib/system/events.js",) line 58, in Observer<.observe data: data File "re[/jid1-f9uj2thwoam5gq-at-jetpack/api-utils/lib/observer-service.js",](/jid1-f9uj2thwoam5gq-at-jetpack/api-utils/lib/observer-service.js",) line 35, in listener callback.call(target || callback, subject, data); File "re[/jid1-f9uj2thwoam5gq-at-jetpack/collusion/lib/main.js",](/jid1-f9uj2thwoam5gq-at-jetpack/collusion/lib/main.js",) line 395, in queueInfo(connection); File "re[/jid1-f9uj2thwoam5gq-at-jetpack/collusion/lib/main.js",](/jid1-f9uj2thwoam5gq-at-jetpack/collusion/lib/main.js",) line 197, in queueInfo if (types.indexOf(info.type) == -1) { TypeError: types is undefined