I recently switched back to Thunderbird from Outlook for various reasons and I ran into a annoying little thing. When replying to a message the cursor automatically goes to the bottom of the message, under the quoted text. I found this really annoying because it means you have to read or scroll past all the parts of the previous conversation before getting to the new part. After a little bit of messing with the settings I found the solution.
1.In the Thunderbird toolbar go to Edit > Account Settings
2. Find the account you want to change and select “Composition & Addressing”
3. Make sure the box is checked to include the quote in the message
Pretty Simple but for me it was rather annoying so I thought it may be worth posting.