Comment 2 for bug 321005

Requesting a Feature Freeze exception for this. mvo's branch (attached to the report) implements the X-AppInstall-AlwaysOnTop flag. Both mvo and I have tested it and it functions well. The only negative we've found is that the sorting does slow display of the app lists in Add/Remove a tad. mvo has mitigated that mostly by not allowing the sorting for the "All apps" category, which we wouldn't want it there anyway. mvo said he is ready to upload the change if a feature freeze exception is granted.