Reproducible: Always Some of the bugmail I get from bugzilla.mozilla.org has at the bottom: ------- You are receiving this mail because: ------- You are watching the component for the bug. This is usually all right, except when sent for moving a bug from one Component (or Product) to another. In that case, bugmail is sent (as should) both to people watching the "old" component and to people watching the "new" one (and of course to those watching both) but without telling them which component they are watching. IMHO it would be a nice enhancement, for bugmail sent for changing the Component, to have instead one or both of You are watching the former component for the bug. You are watching the new component for the bug. (or similar) N.B. I'm not sure whether Component Watching is a mainstream Bugzilla feature or a Mozilla extension. Feel free to move this RFE if needs be.