Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

no open with

  • 2 replies
  • 2 have this problem
  • 3 views
  • Last reply by cor-el

more options

This occurs with any download of any type on any user in my building. I have created a brand new user, installed a brand new copy of Firefox 20, and the issue persists.

If I click download on a file, I get the normal Open with / Save as dialogue; however, the Open with radio button is greyed out, forcing me to save.

This occurs with any download of any type on any user in my building. I have created a brand new user, installed a brand new copy of Firefox 20, and the issue persists. If I click download on a file, I get the normal Open with / Save as dialogue; however, the Open with radio button is greyed out, forcing me to save.

All Replies (2)

more options

Hello nickkorzo,

Which security software (firewall, anti-virus) do you have?

If "Open" and "Open Containing Folder" in the right-click context menu in the Download Manager window are grayed then that means that the file is no longer in the original download location and they may have been removed by Anti-virus or cleanup software.

It is possible that anti-virus software is corrupting downloaded files or is otherwise interfering with downloading files.
Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.

See:

Please report back if this solves your issue.

Cheers, Patrick

more options

Try to delete the mimeTypes.rdf file in the Firefox profile folder to reset all file actions.

You can use this button to go to the Firefox profile folder:

  • Help > Troubleshooting Information > Profile Directory: Show Folder