Is it possible to make the enter key submit a tweet automatically on Twitter?If so, how?
Make Twitter recognize the  key to post tweets?
twitter;keyboard shortcuts
It is not possible to use enter to submit the new tweet on Twitter.com. By default it creates a line break, even if line breaks are not displayed by Twitter.com and most apps.The fastest way to post a tweet using your keyboard is the following:Press n for new tweet on your Twitter home pageWrite your tweet contentPress tab and then enter to post it