An mfl file extension is related to Mozilla Firefox and Mozilla Thunderbird software. An mfl file stores fastload data in XUL (XML User Interface Language).

There are 2 other file types using
the MFL file extension!

empty icon.mfl - MADRIX fixture library

empty icon.mfl - ModFit LT analysis report file

Detailed description

Software that open mfl file

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MFL file extension - Mozilla Firefox XUL fastload data

What is mfl file? How to open mfl files?

File type specification:

Source code and script file type icon Source code and script file type

mfl file icon: mfl filetype icon

The mfl file extension is associated with early Mozilla Firefox and Thunderbird releases.

The mfl file contains pre-compiled JavaScript that is used to speed up some operations, like reduce loading time of skins for example. Probably a little obsolete format.

The default software associated to open mfl file:

Firefox icon

Mozilla Corporation logoFirefox  Microsoft Windows software

Company or developer:
Mozilla Corporation

Firefox is very popular free open source web browser with many features. Firefox uses Gecko layout engine that implements most web standards including new HTML5.

Firefox supports tabbed browsing, private browsing, spell checking, incremental find, bookmarking etc. Other features can be added via extensions and add-ons, such as NoScript, Tab Mix Plus. FoxyTunes, Web Developer.

Mozilla Thunderbird icon

Mozilla Corporation logoMozilla Thunderbird  Microsoft Windows software

Company or developer:
Mozilla Corporation

Mozilla Thunderbird is easy to use e-mail client with spam protection and e-mail managing features.

Help how to open:

The mfl files are used for internal purposes of Firefox and Thunderbird.

How to convert:

As far as we know, this .mfl file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of recommended software applications associated to the .mfl file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open mfl file, edit mfl file, convert mfl file, view mfl file, play mfl file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with mfl file - Mozilla Firefox XUL fastload data

Click on the software link(s) for more information. Suggested software applications use mfl file type for internal purposes and/or also by different way than common edit or open mfl file actions.

Microsoft Windows:

Main software associated with mfl file by default:
Firefox small icon Firefox
Mozilla Thunderbird small icon Mozilla Thunderbird

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MFCRIBBON-MS file extension > Source code and script file types

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file extension MFPS


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