User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b8pre) Gecko/20100101 Firefox/4.0b8pre Build Identifier: Simple to see. In a recent development build of Shredder, just try to write, reply or forward a mail. Nothing is shown in the text part. only from and subject part are working. Reproducible: Always Steps to Reproduce: 1.See details 2. 3. Actual Results: Got this in error console : Error: editor is null Source File: chrome://messenger/content/messengercompose/MsgComposeCommands.js Line: 3857 Expected Results: Working write window ?