Rated 4 out of 5 stars

very wonderfull plugin.

It also works fine with TB 3.0b3 but you need to change the compatiblity line in the xpi.

for that rename the .xpi to .zip then extract the "install.rdf" open it with an texteditor and change the line: "2.0a1" in the Thunderbird section to the version number you've installt. Then overwrite the original "install.rdf" in the zip file with the modified one. Finaly rename the .zip back to .xpi and install the plugin.

Just 4 stars caused by the "incompatiblity"