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!
.mfl - MADRIX fixture library
.mfl - ModFit LT analysis report file
Software that open mfl file
MFL file extension - Mozilla Firefox XUL fastload data
What is mfl file? How to open mfl files?
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.
Updated: January 2, 2025
The default software associated to open mfl file:
Company or developer:
Mozilla Corporation
Firefox is very popular free open source web browser with many features.
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.
Company or developer:
Mozilla Corporation
Mozilla Thunderbird is easy to use e-mail client with spam protection and e-mail managing features.
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 File-Extensions.org'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
Mozilla Thunderbird
