Comment 111 for bug 240133

I think this is a very useful feature. When you save a webpage with a view to read it outline or later, it is more convenient to have a single file.

(In reply to Lance Baker from comment #87)
> MHTML is not an approved standard. It is a Microsoft idea that other browser
> developers have followed.
Among the authors of the RFC2557, only one works for Microsoft. Moreover, it is not like if MHTML is a closed file format: the specification is public and part of IETF's work.