Update: The Forum Extender has received some upgrades, and is now known as Forum Extender+, and the old script is out of date.
- Quote whole posts
- Quote parts of posts
- Add basic formatting to posts (bold, italic, code, lists)
- Add additional navigation to various pages (go to latest post in thread etc)
You can grab the extension at https://forums.dropbox.com/topic.php?id=25978