tab complete for twitter
tabtweet provides automatic completion for @ screen names. Ever gone to make an @ reply but couldn't remember how to spell your friend's name? This extension will make an autocomplete box pop up whenever you type an @ symbol. You can use the tab key to move through the list or let the list help you finish typing the screen name.
***Note to users who protect their tweets: you will need to authenticate with Twitter to make this extension work. Go to the extension options page and go through the OAuth process to make things work.
This project is open source. See the website link to get the source.