I used to be able to open .pdf documents on my MacBook Pro using FireFox with NO problems, all of a sudden NOW they won't open and i get "unsupported" error messages. What the ****? I need to fix this ASAP! Can anyone help in simple non geek language?

THANKS.

Depending on which version of Firefox you're using, it no longer currently supports the plug-in provided with Adobe Reader. You have to use PDF Plugin 2.4.4. Just disable the Adobe plugin and use the Schubert plugin.
Clinton

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HT4993 i am trying to install msnbc app from the app store and keep getting an error message. The app will not install. What can i do?

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This is asked and answered many times each day. The forum search bar is on the right side of this page.
Disable your firewall/security software and try again.

I downloaded a rental movie, and now it won't play. I get an error message that says "We could not complete your iTunes store request. An unknown error occured. (-42110)" This computer is authorized, and I am online and I've downloaded rentals b4. Help?!?

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Perhaps try the "Error 3001," "-42110," or "5103" section in the Specific Conditions and Alert Messages: (Mac OS X / Windows) section of the following document:
iTunes: Advanced iTunes Store troubleshooting

I uninstalled Firefox once, reinstalled it and it ran. I had a problem so I did it again. Now it will not run and I get an error message saying that firefox is running and you can only run one at a time. I can't figure out what is running.

Because of a problem, I uninstalled Firefox once, reinstalled it and it ran. I had a problem so I uninstalled/reinstalled it again. Now it will not run. I get an error message saying that firefox is running and you can only run one at a time. I have uninstalled multiple times and can't figure out what is running. The is only one Firefox installed and it is not open. What does this mean and how do I fix it?

If you use ZoneAlarm Extreme Security then try to disable Virtualization.
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
See also:
*[[/questions/880050]]

HT2558 I'm trying to run Sibelius 6. it won't run and I get an error message saying I need to run as an administrator first.How do I run as administrator?

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Hi Caroline,
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* http://kb.mozillazine.org/The_page_is_not_redirecting_properly

I just downloaded the latest itunes update 11.1 and now I get an error messages saying "The item 'iTunes.exe' that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly."

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Start > Programs = Firefox
Does that shortcut work?
If so, delete the current shortcut that is in the Quick Start tray and drag the one that is in Start > Programs down there.

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I was not complete clear.
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I used to be able to open .pdf documents on my MacBook Pro using FireFox with NO problems, all of a sudden NOW they won't open and i get "unsupported" error messages. What the ****? I need to fix this ASAP! Can anyone help in simple non geek language?

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