I have just started the conversion to Firebird and Thunderbird from Mozilla Suite. I will not make the final move for a while. There are a few things in the suite that I like better.
There is a quirk in Thunderbird that I would like to resolve. Maybe some of you that have been using the stand alone programs longer can answer.
The problem involves the way Thunderbird is handling links. Firebird is set as default browser. Regardless, when I click on a link in Thunderbird the link opens in IE not Firebird. I find no setting that works.