Posts:
98
From:
Thurgoona, Australia
Registered:
Jun 21, 2004
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Re: “Firefox” is an application which was downloaded from the Internet - Op
Posted:
Jun 21, 2009 6:11 AM
in response to: Peter Camamis
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This is the 'quarantine' security feature for Leopard. Google 'Leopard quarantine' and you will see a lot of discussion and possible remedies if you don't like it. But as someone else said, it is a security thing and many learned users recommend not disabling it.
iMac 24in 3.06 GHz
Mac OS X (10.5.5)
3 GB RAM
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Posts:
11
Registered:
Jan 21, 2003
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Re: “Firefox” is an application which was downloaded from the Internet - Op
Posted:
Jun 27, 2009 8:17 AM
in response to: Peter Camamis
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I had a similar problem with GIMP: every time I started the program I would get the warning.
I experimented and found a solution that seems to work for me, but a bit of background first.
I normally use an account that is non-administrator (and doesn't require a password to login). For security purposes, I have another account that has administrator privileges and requires a password. I normally download from my non-administrator account and then to install into the Applications directory, I have to enter the administrator username and password in the authentication window that pops up.
In the case of GIMP, I had never started it up from the administrator account. After I've done that once, I don't get the warning when I start it from my non-administrator account.
Glenn
Mac OS X (10.5.7)
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Posts:
1
From:
Bel Air MD
Registered:
Jul 12, 2009
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Re: “Firefox” is an application which was downloaded from the Internet - Op
Posted:
Jul 12, 2009 1:10 PM
in response to: Glenn R
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Thanks Glenn, this suggestion worked for me. I normally use a non-admin account for normal operation. I downloaded and installed Firefox 3.5 using the Administrator account, but never ran it using that account - and I was getting the "downloaded program" warning everytime I ran Firefox. I switched to the Administrator account, ran it (and got the warning), and closed it. Now, when I use the non-admin account, I no longer get the warning when starting Firefox.
Thanks again for the tip.
iMac 24" 2.8GHz Core 2 Extreme
Mac OS X (10.5.7)
4GB RAM
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Posts:
1
From:
Sydney. Australia
Registered:
Jul 14, 2009
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Re: “Firefox” is an application which was downloaded from the Internet - Open?
Posted:
Jul 13, 2009 10:17 PM
in response to: Peter Camamis
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I seem to remember this happening with an older version of Firefox (with an older version of Leopard). It is now happening for me with 10.5.7 and Firefox 3.0.11.
This fix works for me:
Open terminal
$ su admin
$ xattr -d com.apple.quarantine /Applications/Firefox.app/
Mac various
Mac OS X (10.5.7)
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Posts:
5
From:
New Carlisle OH
Registered:
Aug 7, 2009
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Re: “Firefox” is an application which was downloaded from the Internet - Open?
Posted:
Aug 7, 2009 8:05 PM
in response to: mawt
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I am a Mac rookie of just a couple days and have been having the same problem of this warning repeatedly occurring. I found a solution in a roundabout way. WHat I discovered was that logging off the user account and logging into the root account did not fix the problem, but REBOOTING into the root account then rebooting to the user account did fix the problem. I have no clue why tht worked, but hope it helps the next newbie that finds this message.
Mac mini MB463LL/A
Mac OS X (10.5.6)
Logitech Cordless Wave & Optical Trackman, Acer X203H Monitor, IOGear USB KVM
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Posts:
1,545
From:
California
Registered:
Dec 14, 2000
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Re: “Firefox” is an application which was downloaded from the Internet - Open?
Posted:
Aug 8, 2009 4:30 AM
in response to: mawt
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This worked for me.
Click here
G4 Digital Audio, 1.33GHz 7455B CPU upgrade, Pioneer DVR-115, 1.5GB CL2 RAM
Mac OS X (10.5.8)
Radeon 8500 Mac Edition, upgraded case + PSU fans
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Posts:
57
From:
Germany
Registered:
Aug 6, 2008
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Re: “Firefox” is an application which was downloaded from the Internet - Open?
Posted:
Aug 8, 2009 4:50 AM
in response to: mawt
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I just want to add to mawt's comment that if you remove the quarantine flag from the DMG you download, the installed files will not have the attribute set.
To clear it afterwards, don't just perform the xattr command only on the folder, but on all files.
$ sudo su -
$ cd /Applications/Firefox.app
$ find . -print0 | xargs -0 xattr -d com.apple.quarantine
I usually run this in /Applications, not only in Firefox.app
Also, after running updates of applications, I usually change ownership back
to root:admin, because they are created using the current user-id.
Patrick
Mac OS X (10.5.6)
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Posts:
365
From:
Germany
Registered:
Oct 14, 2004
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Re: “Firefox” is an application which was downloaded from the Internet - Op
Posted:
Aug 8, 2009 7:26 AM
in response to: Peter Camamis
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As far as I know this is not a bug and rather a feature of Leopard. All non-Admin Accounts will prompt you on any invocation of a downloaded program if you are logged in as a standard user.
I know, this does not match many people security needs, but the normal way to get rid of that annoying message is - working with admin privilegs 
Alu iMac 24" 4GB and several other stuff
Mac OS X (10.5.6)
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Posts:
21,474
From:
The cornfields of Nebraska
Registered:
Feb 2, 2003
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Re: “Firefox” is an application which was downloaded from the Internet - Op
Posted:
Aug 8, 2009 9:07 AM
in response to: Thomas Halenbeck
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It doesn't happen for me with just applications. If someone IMs me a file, it registers as an application instead of a document and tells me it is an application that has been downloaded from the internet, and asks if I'm sure I want to open it. (Shades of that "security" Mac vs. PC ad chiding Vista for its ridiculous security measures.)
eMac800/SuperDrive/512/OS 9.2.2; iBook800G3Combo/640-OS X 10.3.9;
Mac OS 9.2.x
iBook G4/1.2/768/OS X 10.4.9, MacBook 2.0/2 GB/10.4.11, MacBook 2.16/2 GB/10.5.6
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