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Rated 2 out of 5 stars
Could you fill in your email address in your profile or add a link to some place where we could discuss this extension (like github)? Addons.mozilla.org has no comfortable way for users to answer to developers replies.
Anyways, no by Nightly I mean Firefox 13.0a1 (nightly is 1 of 4 existing update channels among with Aurora, Beta and Release channels).