User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729) Build Identifier: Future Enhancement Allow the establishment of a mail address type (MAT) for each contact, the default would be "To:", but both "C.c." and "B.c.c." could be selected. This would allow a contact to be selected from the contacts list, but rather than the default of dbl-click to place them on the address line as a "To:", the (MAT) would define how they are placed on the address list. I have certain contact lists that are used only as "B.c.c.", mainly for anonymity of the list members. Unfortunately, sometimes this contact list gets added as a "To:" meaning everyone gets to see everyone else (plus the arriving email looks ugly). Of course the default MAT could be overridden on the address line of the email if required. Reproducible: Couldn't Reproduce Steps to Reproduce: 1.None - future enhancement 2. 3. Actual Results: See above Expected Results: See above None

I agree with this proposal. It could be a workaround for Bug 271917 https://bugzilla.mozilla.org/show_bug.cgi?id=271917