Steps to reproduce: 1. Using MacInstaller, choose custom install (build 2000082108M18) 2. Select mail only Actual results: mail is downloaded but not installed-XPCOM is not selected Expected results: XPCOM and Navigator would be checked and user would not be allowed to deselect
See bug 49819 for comments as to why this is by design.
XPCOM and Navigator are visible and unchecked in Mac commercial installer
changing QA assignee, summary line to reflect problem with N6 Installer