Mozilla Archive Format includes an updated version of Save Complete Rated 5 out of 5 stars
I am the current maintainer of the Mozilla Archive Format extension (https://addons.mozilla.org/addon/mozilla-archive-format/).
Some time ago, the author of Save Complete developed a new version integrated with Mozilla Archive Format. It can save complete web pages accurately, even if you don't want to create a MAFF or MHTML web archive. There are also various enhancements made to the integrated version over the years, including the ability to save pages with frames.
To use it, you only have to install Mozilla Archive Format and configure it to use the integrated version of Save Complete. You can then use the standard save dialog of Firefox or SeaMonkey to save your pages accurately.
I hope this information is useful to Save Complete users until the stand-alone version is updated.