Marking incomplete / unassigning; the Security Team NAKed this MIR in a different bug already, so if it's still needed and deemed appropriate (including the previous comment about how it means we might ship multiple browsers), then please set this back to New.
Marking incomplete / unassigning; the Security Team NAKed this MIR in a different bug already, so if it's still needed and deemed appropriate (including the previous comment about how it means we might ship multiple browsers), then please set this back to New.