The problem: Mozilla Thunderbird (ver. 2.0.0.18) suddenly lost the ability to right click and save all.
The solution: Googled and found out the only work-around right now is: File > Attachments – Save all. A bit of a pain, but better than not having it at all and waiting for them to fix it.
To my mac lovin’ pals: Read with an open mind. 
It may sound strange, seeing as how OS X is based on a Linux variant and is widely considered to be the most user-friendly operating system available, but Linux does a number of things better than everyone’s favorite iOperatingSystem. Before you shun the thought, read on. You might be surprised at your resulting opinion.
Note: This is a lot easier to see in fullscreen mode.
If you have any questions, please let me know.