Has anyone else had problems opening attachments in Mozilla Thunderbird under CentOS 6 lately? I find that when I open the application and select a message with attachments and double-click on one of them, everything works as expected. But, if I try to open another (and another etc.), the helper application isn’t started. In other words, I can only view one attachment per session – if I want more, I have to restart Thunderbird. This probably started happening after upgrading to a new version that was released a few days ago.