Until a few days ago, the From, To, Cc, etc. header fields in the Thunderbird message reader pane were inaccessible (or at least extremely painful) for those using screen readers. Using NVDA, I was sometimes able to read them with a lot of messing around, but I often found myself viewing the message source because it was so much easier to search for the header names in the raw message. In the few years that I have been using Thunderbird, this has probably been one of my biggest gripes with its accessibility. However, this has now been fixed thanks to Jason Lim Yuen Hoe, a student from a university in Singapore doing a course focused on developing for Mozilla. When I move to the header fields with tab or shift+tab, both the header name and its content is now announced instead of a whole load of nothing. It might seem trivial, but it makes my life a hell of a lot easier, and once again demonstrates the beauty of open source development. Thanks, Jason!

The folder selection tree in Mozilla Thunderbird can be a bit of a nuisance for keyboard users. You cannot jump to a folder by typing the first few letters of its name. In addition, when you move between folders with the cursor keys, Thunderbird opens the newly selected folder immediately. IF you have several accounts and many folders in some of those accounts like I do, this means that moving between folders which are quite far apart will cause Thunderbird to try to open every folder you visit on the way. This is not only slow, but also probably wasteful of bandwidth.

I've just discovered a way to solve this second problem, which I'm posting in case others didn't know about it. To move between folders without opening every folder in between:

1. Move to the folder selection tree.
2. Press ctrl+space to deselect the current folder.
3. Rather than using the up and down arrows to find the desired folder, use ctrl+up and ctrl+down, respectively. You can of course keep your finger on the control key. Notice that Thunderbird does not open each folder.
4. When you reach the desired folder, press ctrl+space to select it. Thunderbird opens the selected folder.

There is also the Nostalgy extension, which, among other keyboard productivity enhancements, allows you to jump to a folder by typing all or part of its name. However, I use Thunderbird 3 nightlies and there have been a few compatibility issues recently. Also, Nostalgy overrides the functionality in the quick search bar and it makes the quick search menu inaccessible, so I don't use it anymore. (I should really report a bug, but I can't quite figure out what's going on.)