In the main readme, window.document.getElementById('threadTree') is shown, but it seems the right answer is window.gTabmail.currentAbout3Pane.threadTree. This derailed me for quite a while… (A couple of the other examples seem like they may share this problem.)
In the main readme,
window.document.getElementById('threadTree')is shown, but it seems the right answer iswindow.gTabmail.currentAbout3Pane.threadTree. This derailed me for quite a while… (A couple of the other examples seem like they may share this problem.)