Thunderbird has been my email client ever since I used unix as my day-to-day platform and it&#x27;s a real pity that Mozilla stops maintenance but on the whole it doesn&#x27;t <i>need</i> that much maintenance. It just works, I don&#x27;t think I have a wishlist of features or any bugs that are so bad that they need fixing.<p>Just keep it as it is and I&#x27;m perfectly ok with it. If mozilla did the same with FireFox a and would focus on long term stability and bug fixing rather than grafting new parts onto it and re-writing old parts that are working just fine I&#x27;d be OK with that too. (The default seems to be that bugs are not fixed before the part of the code base that contains them is replaced by something new which in turn also contains bugs.)