I use thunderbird from thunderbird-next ppa (currently 15.0~b4+build1-0ubuntu0.12.04.1~mtn1) and I observe the same behaviour. When deleting messages (my daily dose, about a hundred), ie. moving them to trash folder, the memory consumption is 1.7GB on 4GB machine. I use IMAPs for my mail accounts.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1039837 Title: Moving many emails between folders causes Thunderbird to use massive amounts of memory To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1039837/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs