I downloaded Firefox 4 onto my PowerPC G4 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application "Firefox" because it is not supported on this architecture. I can't find my Firefox 3.6.16 I'm on Safari.

I just want to download Firefox 3.6 again
I downloaded Firefox 4 onto my PowerPC G4, 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application “Firefox” because it is not supported on this architecture.

Use Tony's suggestion. I am running it right now and it is awesome. I love Mozilla but they basically screwed all of those older Macs over. Come on Mozilla. These Macs still work, and there are plenty of people with them out there.

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You cannot open the application "Xcode" because it is not supported on this architecture.

I'm currently trying to understand why XCode 4.3.3 gives me this message when download has completed. I have a MacBook Pro 10.5.8 OS X. Any help would be appreciated WWnewbee

As noted, your OS is not compatible, sorry - see Xcode Versions ~ iOS - As of 9.19.12.

My iMovie no longer will load. Message says, "You can't open the application "iMovie" because it is not supported on this architecture."

I have been using iMovie successfully and have several movies saved, but now iMovie will not load. I have OS 10.5.8 and I don't know what to do. Are there any suggestions? I'm not even familiar with the term "architecture" or why it would be different than it was.

iLife '06 is the newest version that includes iMovie that a G4 will run. Any newer version of iMovie as included with iLife, will not run on a G4.

Just downloaded mavericks, now iPhoto won't load because of an error message that says "You can't open the application "IPhoto" because it is not supported on this type of Mac" . I have a 17" MacBook Pro, mid 2010 model running 2.53 GHz and Intel Core I5,

I just downloaded the new Mavericks operating sytem on my mid 2010 MacBook Pro, 17" 2.53GHz, Intel Core I5 machine. My IPhoto is no longer working at all, I'm getting an error message that says - "You Can't open the application "IPhoto" because it is not supported on this type of Mac". I also loaded Mavericks onto my other MacBook Pro 17", mid 2009 model and everything works fine. I would think that the newer Mac would easily work with IPhoto. Also, when I try to download from the App Store, it asks for my Apple ID and Password, I enter it, and then the little spinning color wheel just spins forever, with nothing ever happening. I tried downloading the IPhoto Upgrade but it never actually downloads, HELP!!!

What version of iPhoto do you have installed? Is if one of the versions shown as not compatible in this screenshot?
If it is then go to the App Store and download iPhoto 9.5. It will be free if you have an iPhoto 9 or later verson currently.
OT

FF4 will not open after download... "you can't open the application "firfox" because it is not supported on this application." If 4 doesn't work on OS 10.5.8, then how do I get the old firfox back?

I downloaded the FF4 update and it has the "no smoking" symbol over the FF icon. When you attempt to open the app it states: "you can't open the application "firfox" because it is not supported on this application."
I have OS 10.5.8
If it will not work, how do I get the old version of FF back?

Are you sure you downloaded the .dmg file? It should have automounted for you and opened in finder. Then all you have to do is drag the FF4 icon over the Applications link in that finder window and it will install.
I seem to recall seeing the error you noted when I accidentally clicked a windows .exe file on my Mac.
Also, if you visit firefox.com from your Mac, it should be prompting you to download the .dmg anyway. The only way you could get the .exe would be to click the "other operating systems" link below the main download button.

On PowerBook G4 OS 10.5.8 my chess App tells me "You can't open the app 'chess' because it is not supported on this architecture. It has worked before. What does that means? What can I do to get it working?

On PowerBook G4 OS 10.5.8 my chess App tells me "You can't open the app 'chess' because it is not supported on this architecture. It has worked before. What does that means? What can I do to get it working?

It sounds like you might have accidently copied Chess over from an Intel Mac, or an Intel Mac's installer DVD. The architecture typically means it is designed uniquely for either Intel or PowerPC. Be sure to extract Chess from the 10.5 Retail installer disc that looks like * and not any other disk. http://www.charlessoft.com/ 's Pacifist lets you extract individual applications from installers without having to reinstall everything.

You can't open the application...it is not supported on this architecture

Returning Mac user here. I am trying to setup some shared games on my Mac mini, 1.25Ghz G4, 1Gb RAM machine and have run into something very puzzling. I am loading some free open-source games under my account and the applications will launch and open just fine. Well, when I attempt to launch that same game(s) under another account it gives me a "You can't open the application <application name> because it is not supported on this architecture". I initially setup this second user account as a a standard but during my troubleshooting steps I have allowed it full Admin rights with the same end result.
Some other things I've tried:
1. Get Info on the applciation(s) and granted everyone (and even the second user account) Read & Write permission.
I scoured Google and these forums and haven't been coming up with much of anything! Can anyone help?

Try creating a new test account, give it admin rights, but make no other changes to it. Log in to that account and see if it can run the game. This will eliminate the possiblity that there is something causing a problem within your second account. You might also uninstall one of the games, and reinstall from your new admin account and see if it, and the other accounts, can use that game.
Francine
Francine
Schwieder

While trying to open iPhoto this message coming-You can't the application "iPhoto" because it is not supported on this type of Mac

I recently upgraded my MacBook from Moutain Lion to Maverick.After upgrading I can not open the iPhoto.Whenever I try to open I get the message --You can't open the application "iPhoto" because it is not supported on this type of Mac.Tell me how to solve the problem?

To re-install iPhoto
1. Put the iPhoto.app in the trash (Drag it from your Applications Folder to the trash)
2. Download it from the App Store to reinstall It's on your Purchases List* there.
For older versions that have been installed from Disk you'll need these additional steps:
2a: On 10.5: Go to HD/Library/Receipts and remove any pkg file there with iPhoto in the name.
2b: On 10.6: Those receipts may be found as follows: In the Finder use the Go menu and select Go To Folder. In the resulting window type
/var/db/receipts/
2c: on 10.7 or later they're at
/private/var/db/receipts
A Finder Window will open at that location and you can remove the iPhoto pkg files.
3. Re-install.
If you purchased an iLife Disk, then iPhoto is on it.
If iPhoto was installed on your Mac when you go it then it’s on the System Restore disks that came with your Mac. Insert the first one and opt to ‘Install Bundled Applications Only.
*Sometimes iPhoto is not visible on the Purchases List. it may be hidden. See this article for details on how to unhide it.
http://support.apple.com/kb/HT4928
One question often asked: Will I lose my Photos if I reinstall?
iPhoto the application and the iPhoto Library are two different parts of the iPhoto programme. So, reinstalling the app should not affect the Library. BUT you should always have a back up before doing this kind of work. Always.

You can't open the application "Xcode" because it is not supported on this type of mac

My System Configuration:
OS X Version 10.8
Processor 2.5GHz Intel Core I5
4GB Ram
Downloaded xcode 4.5 version and extracted. When I double click on the icon I am getting below error. Can you please some help me out.
You can't open the application "xcode" because it it not supported on this type of mac
Thanks in Advance,

From Application folder.
By the way found solution myself. to install xcode 4.5 we should have 10.5.8.2 update.
I am installing now. will update this thread once complete installation.
Thanks

"You can't open the application iTunes because it is not supported on this type of Mac"

Yesterday, Software Updater has installed something which required me to "close iTunes in order to complete the installation" - I can only assume it was an iTunes (or related) update?
Now when I try to open iTunes, a window appears, stating: "you can't open the application iTunes because it is not supported on this type of Mac".
I have a Macbook (late 08) and am running 10.6.8
I'm conscientious about keeping my software & apps up to date, so it should only be something very recent & I assume fairly minor...
Any ideas??

To anyone else who may have experienced this problem (I doubt that I'd be the only one):
Over the past couple of days I have left my Macbook sitting idle for extended periods, put it to sleep, & also shut it down.
This morning I tried to reinstall the same download that didn't work a couple of days ago & it has been recognised, installed & seems to run just fine - playing right now I'm happy to say!
I suggest you try doing the same: ie. leave your machine sitting idle till it sleeps & shut it down, before you try the reinstall.

You can't open the application "Mail" because it is not supported on this type of Mac

For some reason I can not open Mail application anymore; I keep receving this weird message. "You can’t open the application “Mail” because it is not supported on this type of Mac."
I'm using an IMac 24-inch, Early 2008 and running OS X10.8.2. Ever since I downloaded this latest version of OS X Mountain Lion my computer has slown down considerably

Hi mende1,
Problem solved!! Following you suggestion, I reinstalled Mountain Lion and everything is working just fine now.
Thank you very much for your help, I really appreciated.
Cheers
Chris

You can't open the application "iPhoto" because it is not supported on this type of Mac.

I just updated iPhoto and received the attached message when I try to open iPhoto. "You can’t open the application “iPhoto” because it is not supported on this type of Mac" Cannot figure out how to resolve this.

If you are not running Mavericks, then you cannot use the iPhoto download from the App Store. If your are running Mavericks, then you did not download and install the current version of iPhoto from the App Store.

I am trying to open up my iTunes from my Mac. It says "You can't open the application iTunes because it is not supported on this type of Mac." What do I do?

I am trying to open up my iTunes from my iMac. It says "You can't open the application iTunes because it is not supported on this type of Mac." What do I do? I've already force closed all other apps.

Well, obviously the problem isn't with the other apps, it's with the type of Mac you have. What type of Mac do you have?

Since upgrading to FF 4, I have constant crashes (updating graphics drivers did not help). now all my bookmarks are gone. When I try to restore them, I get error message: "Unable to process the backup file".

Since I "upgraded" to FF 4, I have constant crashes (I tried updating my graphics drivers--it did not help) and now all of my bookmarks have disappeared. When I try to restore them, I get this error message "Unable to process the backup file". I have lost years of bookmarks...please help.
I am using Windows XP, SP 3 if that matters.

I am also unable to restore any of the backups of the bookmarks, both automatic backups and two backups that I created manually. Since I was able to restore backups before, and since no changes have occurred to these backup files, the problem must be with Firefox.
Right before my bookmarks disappeared, FF crashed and I accidentally started FF 3.5. When I saw what I did, I ended the Firefox process and started FF 4. That's when all my bookmarks were gone and I discovered I couldn't retrieve any backups. I did note that an add-on was updated when I restarted FF. Maybe that's the problem. Does FF have a Safe mode?

IMac says "You can't open the application iTunes because it is not supported on this type of Mac."

I am running a 2006 iMac with Mac OS X 10.6.8 (it will not update to any newer OS). Is it possible my iTunes updated to a version that can't work on this OS? Why would my iMac allow that? What can I do to fix it? Is it possible to download an older version of iTunes?

Well, obviously the problem isn't with the other apps, it's with the type of Mac you have. What type of Mac do you have?

I downloaded Firefox 4 onto my PowerPC G4 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application "Firefox" because it is not supported on this architecture. I can't find my Firefox 3.6.16 I'm on Safari.

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