Rated 4 out of 5 stars

I have been using this add-on on and off for years. But it still frezees/hangs the thunderbird if you reply to an email with a large attachment (0.5Mb or so) and place replies in the same folder as a thunderbird setting. It keeps waiting for the folder forever till you kill thunderbird. It is a great add-on but please fix this damn problem. It is so annoying to kill the thunderbird and start all over again..

This review is for a previous version of the add-on (0.9.6). 

The problem with this bug is that it cannot be fixed without a total rewrite. We had 3 developers trying to fix it, but the bottom line is that we would need to read the file in asynchronously and that would destroy the current architecture of the Add-on plus very likely remove Stationery support. Unless we get another developer to look at this we will likely not be able to fix it. Here is the detail: