Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Thanks goes to Benoît Bailleux for this addition.
New standard sized icons.
Messed up icon transparency in v0.3, new icons for v0.4.
Thunderbird version bumped to 3.1a1pre.
I f**ked up this version, don't use this, use 0.4 instead.