1. Create a manifest.json file in an empty folder with the contents of manifest.json, below.
2. Add a registry entry for the extension.
- The entry needs to be added at HKEY_CURRENT_USER\Software\Mozilla\Firefox\Extensions.
- The name of the entry should be "test_id@tests.mozilla.org" and the value is the path to the folder that holds
  the manifest.json file you created in step 1.
3. Start Firefox.
4. The extension will be installed as disabled, so go to about:addons and enable it.
5. Go to about:preferences. Verify that the expected output is shown.
    Expected:
    The field for home page should be disabled along with a message that you must disable your
    installed extension in order to change the default home page.

6. Close Firefox.
7. Delete the registry key you created in #2 above.
8. Start Firefox.
9. Go to about:addons and verify that the addon is not there.
10. Go to about:preferences. Check the output.
    Expected:
    The default home page should be selected and no message about disabling an extension should be shown.

    Actual (according to the reporter):
    The field for home page is be disabled along with a message that you must disable an
    extension in order to change the default home page. The name for the extension is missing.

11. Restart Firefox.
12. Go to about:preferences. Report back what you see for the home page UI elements.

We are trying to verify if #11 fixes the problem as seen in #10.