I also read news via Thunderbird but instead of using its built-in reader I use a rss-to-email service. This way my feeds are synced across devices via IMAP. On

I also read news via Thunderbird but instead of using its built-in reader I use a rss-to-email service. This way my feeds are synced across devices via IMAP. On mobile I use K9 (which is apparently rebranding to Thunderbird now, go figure).