[marcusEting]

The extension says it needs:

1) Your data on dropbox.com and www.dropbox.com

2) All data on your computer and the websites you visit

#1 is obvious. I think it needs #2 so it can save a copy of the older version to disk and then launch the diff tool. If you want to check out the extension before installing it, see http://superuser.com/questions/337172/how-do-you-do-examine-...

[wx77]

Just for good measure: If you don't want to install an extension to inspect another extension all chrome extensions are just zip files so if you download the extension you can just unzip and see the contents.

[marcusEting]

@wx77 - yes but that extension is a pretty sweet way to preview other extensions :)