376551 - need better error page for refusing to display a sandboxed extension

Status: RESOLVED DUPLICATE of bug 374654

(addons.mozilla.org Graveyard :: Administration, defect)

Description

[Mike Beltzner [:beltzner, not reading bugmail]]

If I have an extension in the sandbox, and I want to link over to it, the user following that link needs to be in an authenticated user session with their preference set to see sandboxed extensions or else they get a rather unfriendly "add-on not found" page.

A better user experience would be to land them at a page that explains that the extension is sandboxed, and explains how they can go about seeing it.

STR:
1. Make sure you're logged out.
2. Try going here: https://addons.mozilla.org/en-US/firefox/addon/4746

Actual: "Add on not found"

Expected: Something that indicates that the add-on exists, but is being blocked for your protection

I'd be happy to help with the design. It should at the least:

 - it should explain what sandboxing is, and why they should care
 - explain how they can see sandboxed content, with links to the login page
 - do some funky URI compositing so that once the user logs in, they immediately get fwded to the extension they were trying to see