This post is directed towards those of you who are regularly using nightly builds.
Due to some problems in the upgrader code for the local storage calendar, some of you might be getting an error like:
Error updating timezones: Error: mozIStorageStatement::step() returned
DB Error no such column: recurrence_id_tz
To be more specific, this should affect all nightly users that have used a build after 2009-11-07. Fortunately, we have fixed this issue in bug 529853, but this won’t save nightly users that already have a broken profile. Luckily, its quite easy to fix the problem manually.
Update:The first version of the extension didn’t properly update the cached calendar. If you are still experiencing problems, try the new version, I’ve updated the above link