I just did the step to add Facebook to my Dropbox account in order to get a bit of extra space, but then I wanted to undo it as I do not want Dropbox to make posts to my wall.
However, the application doesn't look like a normal application (e.g. stays on the list on the left… I only got to it after finding it's ID and clicking remove).
After this, out of curiosity, I wanted to add it again… (Don't ask me why!), so I clicked the Add to my Page link on the left hand bar, and I only had two options, first was a page I don't use and the second was App which I thought meant "Add as an App" or similar.
I clicked this and I can not see any way to undo it, or what it even did.
Here is a picture from the first application I could find… Substitute Iframe Apps for Dropbox and that is what I saw : (FYI, if I do it now from the Dropbox page, App is no longer listed)
After looking for ages, I am clueless! Anyone know what I did?
Best Answer
I repeated your steps as follows,
Selected add to page (note, the page is not your profile so you removed it from your profile first time)
Investigated the app and it was found to be an app that I used to experiment with a page. But notice the app page is not listed as a switch option to use Facebook as a page
Head over to the developers section and you will see what app you had forgotten about. I found out that it was an app that I tried to associate with a page but forgot all about it.
So in summary, you added Dropbox to a page of an app that you may have forgotten about.