User Agent: Mozilla/5.0 (Windows NT 5.1; rv:7.0.1) Gecko/20100101 Firefox/7.0.1 Build ID: 20110928134238 Steps to reproduce: Selected an email in the global Sent folder and clicked Reply All. This bug occurs only when the selected email has at least one recipient email address on the Gmail, Yahoo or Hotmail domains. Why would I Reply All to a message in the Sent folder that I myself sent? In order to quickly compose an email with all the same recipients. I just have to remove myself from the list. Actual results: The From field takes the address of my Gmail account if one of the recipients is also on Gmail. Likewise for Hotmail and Yahoo. I have accounts in TB on Gmail, Yahoo and Hotmail, however they are not my default account and they are not any of the recipients in the email. In fact they appear nowhere in the message source. There's no reason why these accounts should be used as the from address when replying to messages sent from my default account. Expected results: The From address should have been my default account address.

Apologies for not spotting the duplicate. I did search beforehand. In my case the problem only occurs when replying from the Sent folder and I use multiple accounts although I'm not sure that's the same as multiple identities. However, I accept closure of this report and will add to the original report.