Files with mon file extension can be usually found as bookmarks backups from some versions of Firefox web browser. Monday backups have this extension by default.

There are 3 other file types using
the MON file extension!

empty icon.mon - Monopoly Deluxe game data

empty icon.mon - Maniacs Of Noise audio

empty icon.mon - C64 picture image file format

Detailed description

Software that open mon file

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MON file extension - Firefox monday bookmark backup

What is mon file? How to open mon files?

File type specification:

Backup file type icon Backup file type

mon file icon: mon filetype icon

The mon file extension is used by some versions of Firefox web browser for bookmark backup file.

A backup of BOOKMARK.HTML is called BOOKMARK.HTML.MON, when bookmark saved on Monday.

Updated: April 17, 2024

The default software associated to open mon 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 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.

Firefox for Mac icon

Mozilla Corporation logoFirefox for Mac  Apple macOS / Mac OS X software

Company or developer:
Mozilla Corporation

Firefox for Mac is popular free web browser developed by Mozilla Corporation. Firefox uses Gecko layout engine to display internet web pages. Gecko supports many current web standards. Firefox features include tabbed browsing, spell checking, live bookmarking, private browsing etc.. New features can be added through extensions.

Firefox for Linux icon

Mozilla Corporation logoFirefox for Linux  Linux/Unix software

Company or developer:
Mozilla Corporation

Firefox for Linux is popular free Internet browser developed by Mozilla Corporation. Firefox uses Gecko layout engine to view web pages. Gecko supports many web standards, Firefox supports many features, such as tabbed browsing, spell checking, private browsing etc.. Another features can be added by extensions. In many Linux distributions, Firefox is pre-installed as a default web browser.

Help how to open:

You can recover these bookmark backups only in Firefox web browsers.

How to convert:

Once you recovered the backup, you can export the bookmarks to any exchange format available.

List of software applications associated to the .mon 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 mon file, edit mon file, convert mon file, view mon file, play mon file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting mon files.

Software which is able to fix, repair or recover mon file - Firefox monday bookmark backup

Programs supporting the exension mon on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for recover mon file action.

Microsoft Windows:

Apple macOS / Mac OS X:

Linux/Unix:

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