We've found that in our instance (using scalix webmail, http://scalix.com), clearing Cookies and Authenticated sessions has solved this issue for now. (I've already moved the user onto a clean Firefox profile, that worked for a time, and then FF started crashing with the same error again.)
We've found that in our instance (using scalix webmail, http:// scalix. com), clearing Cookies and Authenticated sessions has solved this issue for now. (I've already moved the user onto a clean Firefox profile, that worked for a time, and then FF started crashing with the same error again.)
Will post if we get more errors with this one...