Which MIME types are related to file extension ".maff"?
The .maff file extension is associated with 1 MIME types:
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .maff Files
MAFF files are archive files that package complete webpages and their resources into a single file.
They use the MIME type application/x-maff to indicate a Mozilla Archive Format. This format bundles HTML, images, CSS, and scripts together.
- Webpage Archiving: Save entire sites or pages for offline viewing.
- Resource Bundling: Combine all related files into one archive.
- Snapshot Preservation: Keep a consistent copy of a webpage at a given time.
Based on information from FilExt.com, MAFF files offer a convenient way to store and share complete webpages.
Relationship between file extension and MIME type
A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.
File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.
File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.
Associated MIME types
FAQs
How do I open a .maff file in Windows or macOS?
Because modern browsers have largely dropped support for this format, the easiest way to open a .maff file is to treat it as a ZIP archive. Rename the file extension from .maff to .zip, then extract it using tools like 7-Zip, WinRAR, or the built-in operating system tools. Inside, you will find an index.html file that opens in any browser.
Why can't I open MAFF files in the latest version of Mozilla Firefox?
The Mozilla Archive Format extension, which enabled .maff support, is no longer compatible with modern versions of Firefox (Firefox Quantum and later). To open these files natively, you would need to use an older browser version or a fork like Pale Moon or Waterfox that still supports legacy extensions.
What is the difference between .maff and .mhtml files?
While both formats save complete webpages, MHTML embeds resources into a single text-based file using MIME encapsulation, whereas MAFF uses ZIP compression. This generally makes .maff files smaller in size. You can learn more about archive MIME types at mime-type.com.
Can I view .maff files on Google Chrome or Microsoft Edge?
Google Chrome and Microsoft Edge do not support the .maff format natively. To view the content, you must convert the file by renaming it to .zip and extracting the contents, or use a third-party file viewer specifically designed for web archives.
How do I serve .maff files correctly from a web server?
You should configure your web server to associate the extension with the MIME type application/x-maff. This ensures that compatible browsers or download managers recognize the file as a Mozilla Archive rather than a generic binary file. See more details at application/x-maff.
Is it safe to open a .maff file from an unknown source?
You should exercise caution, as a .maff file contains HTML and JavaScript just like a live webpage. If the archive contains malicious scripts, opening it in a browser could pose a security risk. It is safer to inspect the contents by opening it as a ZIP file first.
General FAQ
What is a MIME type?
A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.
MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.
How do I find the MIME type for a file?
You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.
Why can one extension have multiple MIME types?
Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.