I was wondering if there exists a thunderbird addon that gives similar functionality as Google's "undo send" feature? This basically just delays the sent message for a few seconds allowing the user to cancel the send if desired. I find this very useful in Gmail and would love the option now that I started using thunderbird.

I've seen the send later addon, but this isn't really what I want. I want something very similar to Google's feature where it automatically delays each message before sending with an easy to access option to cancel the send. Thanks!