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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Cannot download files with extension cdp, get hex dump instead. Have tried Options/Applications but problem persists.

  • 1 baphendule
  • 1 inale nkinga
  • 8 views
  • Igcine ukuphendulwa ngu cor-el

more options

I run a website from which visitors can download 3D models (for a railsim) in the form of compressed files with the cdp extension. When I click on the links in my webpage using another browser it immediately offers me the open or save as dialogue box. When I click on the webpage links in Firefox I get a screen showing what I imagine is a hex dump i.e. Firefox appears to be trying to read the file rather than offer it as a download, which is what I want. I have tried the Options/Applications settings. The cdp extension is set to 'Save File', but it doesn't. Any logical explanation would be very welcome, and hopefully a solution. Thanks

I run a website from which visitors can download 3D models (for a railsim) in the form of compressed files with the cdp extension. When I click on the links in my webpage using another browser it immediately offers me the open or save as dialogue box. When I click on the webpage links in Firefox I get a screen showing what I imagine is a hex dump i.e. Firefox appears to be trying to read the file rather than offer it as a download, which is what I want. I have tried the Options/Applications settings. The cdp extension is set to 'Save File', but it doesn't. Any logical explanation would be very welcome, and hopefully a solution. Thanks

All Replies (1)

more options

If Firefox opens the file in a tab then that means that the server probably sends the file as text/plain and in that case you need to configure to send the file with the correct content (MIME) type.
Otherwise you need to right-click the link and choose "Save Link as" or hold down the Alt key and left-click (Windows only).

See https://developer.mozilla.org/en/Properly_Configuring_Server_MIME_Types