ali on IRC is trying to upload the Penny Post extension ( http://pennypost.sourceforge.net ) to AMO but it is failing. We suspect it's size (16MB) is the culprit. When I tried it on remora.stage, I spent a long time uploading, and then got kicked back to the "Developer Agreement" page. It looks like this is bug 346168 coming back from the depths. We've got a couple 8-9MB extensions, but I'm not sure if they are new uploads or if they came over in the Great Migration. ali stripped out a portion of the extension and put that in the sandbox ( https://addons.mozilla.org/en-US/thunderbird/addon/5553 ) but would like to replace it with the complete extension.