File Extension Library


.MON File Extension

  • Developer by: Mozilla Corporation
  • Category: Backup Files

What are .MON files and how to open them?

Can't open .MON file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MON file.

What is a .MON file extension?

.MON file extension is created by Mozilla Corporation. .MON has been classified as Backup Files.

.MON is Firefox monday bookmark backup file

File extension mon 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.


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.

How to fix problems with .MON files

  1. You need to update the application that you normally use to open .MON files. Only the latest version of the software supports the current .MON file format
  2. You need to check the .MON file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)