No idea what caused this or why it's happening, but when I right click something in Finder I'm missing a lot of the standard options that should be there (dropbox options, labels, etc). I've restarted several times, relaunched Finder, repaired disk permissions, and nothing's worked.
When I right click on my Desktop:
When I right click a file in Finder:
Best Answer
From your question it looks like your Dropbox is misbehaving.
Do you have the latest version of Dropbox? Reinstall Dropbox with the newest version.
Source: https://discussions.apple.com/thread/5577081