I don't disagree about the supernova thing, but the versions you are talking about are unsupported and in many cases simply do not work with the modern authentication required by some of the mail providers (including Google and Hotmail) so you are really not going to like your experience going forward even if you do manage to get it to work for you. I do suggest you express your feelings in the feedback forum. https://connect.mozilla.org This is a peer forum, so expressing you opinions here is just a waste. You might also be aware that all communication channels are moderated using the [https://www.mozilla.org/en-US/about/governance/policies/participation/ Mozilla guidelines], so you have to be "nice" and "friendly" when you express you disgust.