Lost everything Rated 4 out of 5 stars

A truly great extension, addictive and suits me perfect (though rearranging of groups can trouble me sometimes). Makes me more productive! BUT, since an update, don't know if FF was updated or the extension, I lost all my tab groups and the tabs within them! Had about 70-80 tabs open researching for stuff, and need these tabs back! They're hopefully still in some conf file somewhere, but maybe a bug fix would be handy? Seems like more of us had the same problem... TabGroups Mgr seems to be loaded (haven't checked with debug version though), but menus and everything is still there, but nothing happens when I try to open a new tab group...