Hot on the heels of the final Firefox 1.5 release I have a new version of Tab Sidebar for you, version 1.0b4. This has over 30 bug fixes and improvements to it's name and while still not quite ready for it's first full release it is close to the feature set now.
For those who have been having trouble with the shortcut key to open the sidebar, there is a second shortcut key, Ctrl-Shift-E for you. The options have been cut down with the most common settings already in place then just a few settings to adjust those.
If you have any particular problems then you can let me know here, but preferably try filing a bug report on my bugzilla
Thanks for all your support and suggestions over the past month, sorry I wasn't able to get back to everyone personally.