Rated 2 out of 5 stars

Thunderbird (2.0.0.19-Ubuntu Linux) crashed when I asked it to mark subfolders read for my relatively simple tree (about 5 folders deep and about 40 - 50 folders total).

However, when I reopened Thunderbird, it had indeed marked them read. So, it works - just not in as stable of a manner as I would have wished. Luckily, I only needed it for a one-shot deal.

Many thanks for saving me about 30 minutes of right-click hell! ;)

This review is for a previous version of the add-on (0.0.2).