There is a new version of the Chrome extension available (well, under review by the Chrome Store) V3.48br>
Chrome should auto-update, if not, click update.
We have dropped further support for Yahoo Mail - they don't have an API, change their id management and storage/retrieval often - just too much. It still works, but is likely to break
If you experience issues after updating, please send an email to support.
Be aware that the service may go down at random times for a few minutes as we are cranking out new features, testing, and re-deploying