XXXX is an application downloaded from the internet....

When I open certain file types, I always receive the message that the document is actually an application downloaded from the internet, are you sure you want to open it. These aren't applications, they are documents. Even after clicking open, I get the same message the next time I attempt to open the same file type. Anyone else having this issue?

MacBook Pro & Mac mini, Mac OS X (10.6.1)

Posted on Oct 7, 2009 11:27 AM

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16 replies

Oct 7, 2009 1:30 PM in response to Morsalmararc

Did you upgrade from Leopard to Snow Leopard? If so, did you have this issue under Leopard?

Did you notice the messages as soon as you upgraded to Snow Leopard?

One thing to try:

Create a new user account. Log out of the current account and into the new one. Download one of these files and open it here. Does the message pop up?

There was a similar feature in Leopard, and I think it's been beefed up in Snow Leopard. I'm not sure if what you're seeing is supposed to be happening, but I'll look into it.

~Lyssa

Oct 17, 2009 1:33 AM in response to Morsalmararc

If you have write permission to the files and if you are sure that they are safe, you can go to the terminal and type this command:
xattr -w com.apple.quarantine "" /path/to/file/foo.bar

This will make the warning go away the next time you open it. If there are multiple files with this issue you could also write a script like an AppleScript droplet to do it for you.

Oct 19, 2009 10:27 AM in response to Morsalmararc

same problem here.
If I save mails that I typed myself in thunderbird (plain text) I get an html file. If I double click that file I get the same dreaded dialog. And I handle LOTS of emails....

I understand that html gives possibility to include scripts and code. How about running code in quarantined section ? Ask if it wants access to outside that area. Only real applications want that?

Oct 29, 2009 5:39 PM in response to w.pasman

With Leopard, I used to see this warning the first time I opened a downloaded app. Since upgrading to SL, I'm getting it EVERY time I open downloaded applications (but only some of them). I dismiss the warning, but the next time I try to run the application, I get the warning again.

For some downloaded apps, I get the warning once, and only once. For others, the warning persists forever.

In some cases, I have tried downloading the same application again, and then reinstall it. After doing so, I get the warning once. On subsequent launches of the application, the warning usually does not occur.

I generally use Firefox to download files. This is not related to Safari, as has been suggested in other related threads.

Jan 15, 2010 8:58 AM in response to Morsalmararc

http://www.macworld.com/article/145324/2010/01/filewarnings.html

+Permanently disable the warning system+

+If you’d like to disable the warning dialogs completely (for any files you download in the future), open Terminal and copy and paste this command:+

+defaults write com.apple.LaunchServices LSQuarantine -bool NO+

+After you get the command prompt back (you won’t see any feedback; the command prompt will simply appear again), restart your Mac. From now on, you won’t be warned when opening downloaded files. It goes without saying, but making this change reduces the security of your machine. As I mentioned earlier, I’ve chosen to leave the warning system in place, and just remove the warning flag from downloaded files when I feel the need.+

+If you do permanently disable the system, and then decide you’d like it back, repeat the above command, but change NO to YES and reboot your Mac.+

+I have tested both the one-time and permanent solutionn methods on 10.5 and 10.6, and they work as described (including the bit to turn the warnings back on). Thanks to Jonathan Rentzsch, Ken Aspeslagh, and Timothy Luoma for various pieces of this hint.+

Would love to know if there are any obvious problems with this approach, as the warnings popups are driving me insane and I'd rather just take the risk on stuff that I've personally already decided was worth the risk when I bloody clicked on the download link in the first * place.

Why am I being forced to make the same decision twice?
No clue.

Why do I want to use this approach instead of the one suggested earlier?
Because I have already used Terminal and am somewhat familiar with it, and this approach seems simpler.

Doubleposting this to make sure that the people subscribed to each thread get a courtesy notice if they so desired.

Message was edited by: par larsson

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XXXX is an application downloaded from the internet....

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