Review for Hebrew Calendar by The Sandman
Rated 5 out of 5 stars
This is an outstanding little Hebrew Calendar Add-on with some very useful features. It's available for both Firefox and Thunderbird. The author is constantly updating and improving it. Highly recommended.
This review is for a previous version of the add-on (1.0.4.73).To create your own collections, you must have a Mozilla Add-ons account.