Mozilla Archive Format

{{Short description|Legacy compressed Zip file format}}

{{Use dmy dates|date=January 2024}}

{{Infobox file format

| name = Mozilla Archive Format

| icon = MAFF Icon.png

| screenshot =

| caption =

| extension = .maff

| mime = application/x-maff

| genre = Web-archive, data compression

| containerfor = Web-pages

| containedby =

| developer = Christopher Ottley,{{cite web |url= http://maf.mozdev.org/members.html |title=MAF project members|accessdate=9 September 2013}} Paolo Amadini

| owner = Paolo Amadini

| released = {{start date|df=yes|2004|05|04}}

| extendedfrom = ZIP

| extendedto =

| standard =

| open = Yes for the Specification of MAFF file format;{{cite web |url= http://maf.mozdev.org/maff-specification.html |title=The MAFF specification |accessdate=9 September 2013}}
(MAF Firefox Addon){{cite web |url= https://addons.mozilla.org/en-US/firefox/addon/mozilla-archive-format/ |title=Firefox Addon: MAF – Mozilla Archive Format |accessdate=9 September 2013 |url-status=dead |archive-url=https://web.archive.org/web/20171102005204/https://addons.mozilla.org/en-US/firefox/addon/mozilla-archive-format/ |archive-date=2 November 2017}} under MPL 1.1, GPL 2.0, LGPL 2.1, or any later version of these licenses;
Documentation is under Copyright;{{cite web |url= http://maf.mozdev.org/documentation.html |title=User's Manual Firefox Addon: MAF – Mozilla Archive Format |accessdate=9 September 2013}}

| magic = 04 03 4b 50

| url = {{URL|http://maf.mozdev.org/maff-file-format.html/}}

}}

The Mozilla Archive Format (MAFF) is a legacy Web archive file format that was provided by Firefox through an extension, used to store one or more web pages with their associated audio, video, and other related web resources to a single file.{{cite web |url= http://maf.mozdev.org/maff-file-format.html |title=About the MAFF file format |work=maf.mozdev.org |year=2011 |accessdate=16 November 2011}} Unlike MHTML, which uses MIME encoding within a single HTML file, MAFF compresses the page into a Zip container file.{{cite web |url= http://maf.mozdev.org/documentation.html |title=Mozilla Archive Format |work=maf.mozdev.org |year=2011|accessdate=16 November 2011}}

The extension supported versions of Firefox from 2007 to 2017 but not later, and there are no plans to update it.{{cite web |url=http://maf.mozdev.org/feedback.html |title=Known issues with the Mozilla Archive Format add-on |access-date=13 August 2017}} It continued to be supported in Cyberfox and Waterfox, forks of Firefox that try to keep features removed from Firefox like the traditional extension API. Browser extension WebScrapBook (with assistant PyWebScrapBook), available for Firefox 57+ and Chromium-based browsers, supports saving and opening MAFF files.{{cite web |url=https://github.com/danny0838/webscrapbook |title=WebScrapBook on GitHub |website=GitHub |accessdate=11 April 2019}}{{cite web |url=https://pypi.org/project/webscrapbook/ |title=Webscrapbook · PyPI |accessdate=11 April 2019}} Pale Moon extension MozArchiver, a fork of the original extension, provides the same support for Pale Moon 26.0 and newer.{{cite web |url=https://addons.palemoon.org/addon/mozarchiver/ |title=Pale Moon – Add-ons – MozArchiver |accessdate=23 April 2018}}

Existing files in the discontinued .maff format can be accessed by extracting the internal folders and files with an unarchiver such as 7-Zip. It also allows for automatic processing, e.g. as Zip-type in local search machines (like DocFetcher). Pale Moon allows .maff files to be opened in Microsoft Windows.