Comment 38 for bug 240133

(In reply to comment #37)
> I changed from IE to Mozilla just for security reasons. I'm still missing this
> nice MHTML feature. There are many HTML documents with important inline
> graphics, like pages with embedded math formulas as GIF or graphs.
> For me it's not important that all features of a web page are preserved.

Actually Moz… is at least capable of viewing *.mht files created by IE. I tried
following.

1. in IE. Opened a web page with graphics
2. saved it as *.mht file
3. Opened a new message in Thunderbird
4. Attached the *.mht file
5. save the message as draft
6. view the saved draft message in preview pane
7. I am able to see the complete web page with graphics and css

If Thunderbird is capable of viewing a *.mht Mozilla.org has code to show it in
the browser.

But I dont whether there is code to save it!!

Alternative, Mozilla is capable of viewing contents inside a zip file (including
pages with graphics and css). So why not make a XPCOM component to update zip,
then extension developers can use that to make a single file achieving facility.

See topic http://forums.mozillazine.org/viewtopic.php?p=442473