Nithin Kamath's Weblog

Though Firefox doesn’t provide native support for viewing or writing MHTML files, the Mozilla Archive Format (MAF) Firefox extension can help you. Once installed in Firefox, this extension lets you save Web pages in the open-source .MAFF format. It can also read and write .MHT files, which IE users can open.

However, the MAF Firefox extension requires Firefox 1.5+. If you are on a previous version, you can either install the View in IE or IE Tab extension.

read full – digital inspration.