This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Is there a way to prevent the open / save as dialog box the first time a user clicks on a link to open a file

more options

Is there a way to prevent the open / save as dialog box the first time a user clicks on a link to open a file. See attachment with screen print of the popup dialog.

Is there a way to prevent the open / save as dialog box the first time a user clicks on a link to open a file. See attachment with screen print of the popup dialog.
Attached screenshots

All Replies (1)

more options

User preferences for how to handle downloads by content-type are stored in a file named mimeTypes.rdf which is specific to each Firefox user profile. I don't know whether you can successfully modify that file; its internal XML structure is hard to follow.

Firefox builds the mimeTypes.rdf file initial from the Windows registry. Perhaps when your application installs it can set a flag for what should happen by default. I searched a bit on MDN but didn't see an article on how that part works. https://developer.mozilla.org/