Comments on: OS X Leopard – Are you sure you want to open it?

By: Kevin

Kevin — Tue, 04 Oct 2011 15:46:15 +0000

Try this but adjust for your security needs…

LSRiskCategorySafe

LSRiskCategoryContentTypes

com.microsoft.word.doc
com.microsoft.word.xls
com.microsoft.word.ppt
org.openxmlformats.wordprocessingml.document
org.openxmlformats.openxml
org.openxmlformats.wordprocessingml.document
org.openxmlformats.wordprocessingml.document.macroenabled
org.openxmlformats.wordprocessingml.template
org.openxmlformats.wordprocessingml.template.macroenabled
org.openxmlformats.spreadsheetml.sheet
org.openxmlformats.spreadsheetml.sheet.macroenabled
org.openxmlformats.spreadsheetml.template
org.openxmlformats.spreadsheetml.template.macroenabled
org.openxmlformats.presentationml.presentation
org.openxmlformats.presentationml.presentation.macroenabled
org.openxmlformats.presentationml.slideshow
org.openxmlformats.presentationml.slideshow.macroenabled
org.openxmlformats.presentationml.template
org.openxmlformats.presentationml.template.macroenabled

By: sabdal

sabdal — Mon, 19 Sep 2011 14:39:11 +0000

works great on .doc and .xls but NOT with .xlsx or .docx. Any thoughts???

By: ilker

ilker — Sun, 04 Sep 2011 12:07:08 +0000

Thanks for the tip. For webarchive files you can add the line:
com.apple.webarchive
to the com.apple.DownloadAssessment.plist file.
And for Keynote users, if you want to open a pdf file from within the Keynote (normally you can not do this) you can create a web page with iWeb and publish it to a local folder on you Mac and then refer from your Keynote presentation to this local web page, where this local web page as a proxy/intermediary for the files you want to reach . The trick is, within the iWeb web page you can call a pdf file using Hyperlink (as in Keynote) feature and choose the option “File” for the hyperlink.
This may be helpful for the ones who wants to show an external file incl. Pdf files from within their Keynote presentation. And the above mentioned method can also be used to show offline/stored web pages using .webarchive files from within Keynote presentations.

By: Khaled Hawari

Khaled Hawari — Sat, 09 Apr 2011 07:56:35 +0000

Hey there,

Thank you for this amazing tip. It works for downloading and automatically opening “Safe” files after downloading, which is a Safari preference.

Any idea if something similar can be done for Firefox ? I am trying the built in Firefox options for setting what to do with files when downloaded (my aim is to download a certain file and open with an application) but even after doing so i get the pop-up asking me what to do, and yes i have selected to do this automatically for all file types and made sure it si iset correctly in the preferences, but no luck

By: bradym

bradym — Sun, 11 Jul 2010 02:16:28 +0000

Thanks for the tip!

The “System-Declared Uniform Type Identifiers” page has moved to: http://developer.apple.com/mac/library/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html

By: Ryan

Ryan — Tue, 27 Apr 2010 18:15:59 +0000

I had loads of problems getting this to work! The instructions were perfect, but for some reason whenever I created the file myself, nothing would happen. I did a search of my mac because I thought there might be some sort of file conflict, and I saw a zip file called com.apple.DownloadAssessment.plist.zip that I must have downloaded the last time I tried to get this working! I unzipped it, overwrote the existing file, then I opened it in plist editor (part of the apple dev tools – free to download) added a new string for the extension type I wanted, and it worked perfectly! Cheers for the instructions, and if anybody is still getting problems, try downloading someone else’s plist file – or take a copy of an existing plist in the preferences folder, rename it and then edit the details using plist editor.

By: Paul Gray

Paul Gray — Sun, 09 Aug 2009 01:11:53 +0000

@marcus, I was having the same problem. Then I read elsewhere that the application needed to be opened by the original downloader first – I had downloaded Firefox using an administrator account. I never opened Firefox under this administrator account, instead logging in to my standard account and getting irritated by the warning every time I opened Firefox. After logging into my administrator account, running Firefox once, I then quit, logged out and logged into my standard account – and the problem was solved.

By: marcus

marcus — Tue, 24 Feb 2009 15:58:55 +0000

Hi there I have setup a standard user account on OS10.5 and everytime i open VLC or Firefox i get the damn are you sure you want to “Are you sure you want to open it?” and it happens everytime.

By: Chris

Chris — Sat, 24 Jan 2009 02:40:38 +0000

@Davinian, Thanks for the response! The .inc file is an include file for other php files that call on them. They just “include” other info that the php file does not have built in. If this helps any. I was just confused because I didn’t see that file on the list that apple had.

By: Davinian

Davinian — Fri, 23 Jan 2009 21:45:32 +0000

@Chris, what are the .inc files for – what application/programme?