How to open MON file extension?

The author of advice: Mr Brankiewicz

MON files are incessantly popular. However, a file name containing MON file extension is problematic for some of the users. They have problems with correct opening of a file with MON extension. However, it should be remembered that MON file extension can match one or more types of files. The most popular is Firefox Monday Bookmark Backup but if there are others, you will find information concerning them below.

So, it is worth looking close at the problem concerning MON files and search for its solution.

A list of programs supporting files types with MON extension can be found below. Applications are sorted according to appropriate operational systems and their popularity.

  • Firefox Monday Bookmark Backup

    .mon file extension

    Category: Archive Files

    OS Software
    Windows Firefox Firefox
  • Monopoly Deluxe Game

    .mon file extension

    Category: Games Files

    OS Software
    Windows Monopoly Deluxe Monopoly Deluxe
  • Maniacs Of Noise Audio

    .mon file extension

    Category: Audio/Music Files

    OS Software
    Windows Amiga Forever Amiga Forever

How to check if a file we want to open is not infected by malware or viruses?

  • Download Malware/viruses removal tool from MON files in the Windows system.
  • Click “Start scanning” and wait until the programme performs the scanning process on your computer.

What are the reasons of errors concerning MON extension of files?

The problem that often causes damage concerning MON extension are Windows system registry errors. That is why, in the first place it is recommended to:

  • Scan computer in order to identify, repair and open the MON file
  • Check system registry from the angle of hidden errors
  • Repair file’s associations with programs in the system registry

If you are not sure if the above problems concern you, you should consider other frequent irregularities:

  • You do not have an appropriate application installed that supports MON file extension
  • MON file is corrupted
  • The application’s version necessary to open the file is not correct
  • The file is not assigned to an appropriate program

Solving problems with MON files


If MON file does not open, firstly, it is worth using files associations built in the Windows system with application that can support them. In order to do it, you should double-click a MON file icon. A list of programs that probably support such a file will appear. It is enough to choose one of them so that Windows would open a given extension with it. Incorrect file’s association will result in Windows trying to open MON file with a wrong program all the time even if there is an appropriate application supporting this format on a drive. In this case, it is necessary to perform the above mentioned registry scanning and associations’ repair.

If associations are correct and Windows still cannot open the file, most probably the computer does not have appropriate software supporting files with name containing MON in their extension. The solution to this problem is very simple. You should buy or download a free (if they exist) application that will allow you to open, browse and edit MON format. It is no risk because many paid programs have free test versions enabling to check their functionality.

Do you have extra information about a MON file? [ Add information about a MON file ]

5 564

of file extensions

8 858

of file types

5 504

of applications opening the files

1 661

of producers