Linux + Thunderbird

Does anyone have access to Thunderbird on a Linux box? Could you check to see if digest auth works for viewing protected entries (that you would normally have access to) in feeds. http://www.livejournal.com/support/faqbrowse.bml?faqid=149&view=full has the info on using ?auth=digest or &auth=digest but it's basically like all the other usual parameters. Thanks!