Comment 3 for bug 440408

Here's the video that shows noscript blocking access to localhost.

http://www.youtube.com/watch?v=ciOVBbI6IkQ

Accessing localhost is required to perform OAuth, therefore ABE with default ruleset will prevent OAuth from working.
The workaround is to disable ABE in NoScript before starting ubuntuone client and during Tomboy sync setup procedure.