Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:28.0) Gecko/20100101 Firefox/28.0 Mozilla/5.0 (X11; Linux i86_64; rv:28.0) Gecko/20100101 Firefox/28.0 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 Reproduced on latest Aurora (20131217004003) and latest Nightly-Holly (20131217040201). Steps to reproduce: 1. Open App Manager 2. Add a packaged app 3. On the Manifest Editor, select a configurable property 4. Click on the field and change it's value 5. Click outside the modified field 6. Select another field, modify it and while it is in edit mode, select the "Save" button Actual results: 5.6. The field returns to the initial value; the entered value is not saved. Expected results: The modifications should be saved or the user should be informed that the changes are saved only after pressing ENTER.

This code will be removed soon: bug 1007061.