Quote Entire Message in Replies with Thunderbird

Thunderbird quotes the selected text when replying to a message. The behavior, however, can be changed by setting

mailnews.reply_quoting_selection.multi_word

to false. Quoting the chosen solution from https://support.mozilla.org/en-US/questions/1002362:

1. Tools > Options > Advanced > General tab click on Config Editor button in top search type: reply look for this line: mailnews.reply_quoting_selection; Value = true
2. Double click on this line to toggle true to false
3. Do the same for this line: mailnews.reply_quoting_selection.multi_word; Value = true
4. Then close using top right X click on OK to save changes to Options