Hi,
I'd like to write a gmail extension that would add a button on the email page (or a seclectbox, or anything). For information, the goal is to add a task into my task manager from an email content.
What would be the way of doing it ? A greasemonkey script is not an option as I would like to do it for Chrome too.
I don't know where to start.
Thanks for any pointers, Mickael;