Help. I am all of a sudden having download errors and get the message /Users/MWP/Downloads/PFMS_vball_sched-4.pdf could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file.

This happens regardless of the pdf file I am trying to open within a page using Firefox. My version of Firefox is updated (3.6.13). Please help!

Please install the following add-on to see if it helps.
https://addons.mozilla.org/en-US/firefox/addon/pdfjs/

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I get the following error everytime I download something from the internet:-"/Users/vinaypunjabi/Downloads/Ontario Colleges Chart(2)(1).pdf could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file".

I get the following error everytime I download something from the internet:-"/Users/vinaypunjabi/Downloads/Ontario Colleges Chart(2)(1).pdf could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file".
Then it shows as downloading failed.But if I click on it twice ,it opens up .
this has started happening since last week.Before this ,it never happened.
Please suggest what has gone wrong somewhere and how can I rectify it.

Please install the following add-on to see if it helps.
https://addons.mozilla.org/en-US/firefox/addon/pdfjs/

. Try saving to disk first and then opening the file. when I download

C:\Users\howie\AppData\Local\Temp\incredimail_install-12.exe could not be opened, because an unknown error occurred.
Try saving to disk first and then opening the file.

Did you try saving to disk first and then opening the file?

Hello Sir I have an iPhone 4 and when i updated that it got updated but now for restore the data it is showing me the message The "iPhone" could not be activated because an unknown error occurred (0xE8000004). Please try again later. please help me.

Hello Sir I have an iPhone 4 and when i updated that it got updated but now for restore the data it is showing me the message The "iPhone" could not be activated because an unknown error occurred (0xE8000004). Please try again later. please help me.

Hello Amarchand Sharma,
Are you working with a Windows computer? If so, the resource below may help you troubleshoot the issue you are having restoring your iPhone.
iOS: Unknown error containing '0xE' when connecting to a Windows PC - Apple Support
http://support.apple.com/en-us/TS3221
Regards,
Judy

My iTunes opens in safe mode but when I try to sync my ipad? It says apple mobile device service could not be started because an unknown error occurred 1084

It says apple mobile device service could not be started because an unknown error occurred 1084

I figured it out on my own, and it was an odd fix. I added a password to my account in users, and then made Apple Mobile Device service log in through my account, and now it works.

When trying to sync new songs got message that they could not be synced because of "unknown error code (-50)" tried resetting ipod and rebooting computer

this is a second hand ipod nano . I think it is the 4th or 5th generation. It worked fine until I tried to sync two new songs and got the error code unknown error (-50) does anyone have any knowledge of this?

Have you looked here:
Sync Session Failed to Start iTouch iOS5: Apple Support Communities
iphone could not be synced sync session failed to start...: Apple Support Communities

/Users/christinewoodbury/Downloads/install_flash_player_osx_intel.dmg could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file.

Hope this is the right forum to ask this question - I get the above error message when trying to download the update of Adobe Flash Player on my Mac desk top. I have done this successfully before but not now. Have I accidentally changed a setting or something?

Please install the following add-on to see if it helps.
https://addons.mozilla.org/en-US/firefox/addon/pdfjs/

I am unable to open pdf links using firefox 4 beta 11. Error message is "....ashx file cannot be opened, because an unknown error occurred. Try saving to disk first and then opening file"

I can open some pdf file in FF beta 11 using Adobe reader, however some links to pdf files cannot be opened. When clicked, the error message above appears. There is no option to open the file, so I have had to switch to Safari to read these pdf file.

Please install the following add-on to see if it helps.
https://addons.mozilla.org/en-US/firefox/addon/pdfjs/

I can not download the new version of Firefox. I keep getting a message that says "Firefox 5.0.1dmg could not be opened, because an unknown error occurred" HOW do I fix this?

Every time I try to download the new version it just says I can not download the new version of Firefox. I keep getting a message that says "Firefox 5.0.1dmg could not be opened, because an unknown error occurred - Try saving to disk first and then opening the file"

If you have problems with updating or with the permissions then easiest is to download the full version and trash the currently installed version to do a clean install of the new version.
Download a new copy of the Firefox program and save the DMG file to the desktop
* Firefox 5.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Trash the current Firefox application to do a clean (re-)install
* Install the new version that you have downloaded
Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data.
* http://kb.mozillazine.org/Profile_folder_-_Firefox

I am having trouble with downloading a zip file. When I do, it gives me the error message (filename) could not be opened, because an unknown error occurred.

(filename) could not be opened, because an unknown error occurred.
Try saving to disk first and then opening the file.

*kb.mozillazine.org/Unable_to_save_or_download_files
*https://support.mozilla.org/en-US/kb/cant-download-or-save-files

The iphone "iphone" could not be updated. An unknown errror occured (21)

The iphone "iphone" could not be updated. An unknown errror occured (21)

See Resolve iOS update and restore errors - Apple Support, and click on "21."

I cant re-store my iPhone through the iTunes. Message which comes up says' the iPhonw could not be restored. An unknown error occurred (21). i tried all the options and nothing seems working. please help

I cant re-store my iPhone through the iTunes. Message which comes up says' the iPhonw could not be restored. An unknown error occurred (21). i tried all the options and nothing seems working. please help

Hi chiekoo,
Thanks for using Apple Support Communities.
For more information on this, take a look at this article:
iTunes: Specific update-and-restore error messages and advanced troubleshooting
http://support.apple.com/kb/ts3694#error21
Error 20, 21, 23, 26, 28, 29, 34, 36, 37, 40
These errors typically occur when security software interferes with the restore and update process. FollowTroubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.
Also, check your hosts file to verify that it's not blocking iTunes from communicating with the update server. See iTunes: Advanced iTunes Store troubleshooting—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > Mac OS X > The hosts file may also be blocking the iTunes Store. If you have software used to perform unauthorized modifications to the iOS device, uninstall this software prior to editing the hosts file to prevent that software from automatically modifying the hosts file again on restart.
Best of luck,
Mario

HT201413 HELP! I was updating my iphone 4S to the new IOS6 via itunes when in the in the middle of the process of actually updating the iphone OS, it suddenly returned an error - "The iPhone could not be updated. An unknown error occurred (1602)" PLEAS

PLEASE HELP!!!
I am using an HP DV9 laptop running Windows 7 Home Premium and the latest iTunes software.
I regularly synch my iphone 4S with my laptop & Outlook.
I recently got the message that an IOS6 upgrade is available & so I scheduled to apply the update.
Everything was running normally when, after the download of the update, backup of my iphone, & applying the update began when
suddenly, iTunes returned with an ERROR MESSAGE as follows:
The iPhone "Ramon's iPhone" could not be updated. An unknown error occurred (1602)
Now, my iphone is stuck with the iTunes icon and the USB image with an arrow pointing to the iTunes
icon.
WHAT DO I DO NOW?????!!!!!
Help PLEASE!!!!

I actually tried the steps below due to the error -5000 I had encountered during the previous tries updating my IOS to 5.1.1
"Perform a normal sync and check your iTunes to make sure everything was synced in the right places like the tabs at the top of your "summary" when you plug in your iPhone to iTunes. If everything is there and all the right boxes are checked for the stuff you want to save, then put your phone into recovery mode by keeping it plugged into your computer with iTunes still up and running. Next you want hold down the power button AND the home key button (the big button on the bottom part of your screen) AT THE SAME TIME. Your phone will go thru 4 different screens before you
Can let them go. U will see your normal power off slider screen, then a black screen, then a black screen with an apple logo, then finally a screen with the iTunes logo and a picture of a sync cable below it. Once you see this screen LET BOTH BUTTONS GO but not before you see this screen. Your computer will tell you that it has detected an iPhone in recovery mode, say ok. Then hit the restore button on your iTunes summary screen, it should then ask you if you want to restore from a backup and update, say yes.... And at the end of its restoring and uploading you should have iOS 5!!"
Then it proceeded to a reactivation process... =(

HT201210 The iPod "iPod" could not be restored. An unknown error occurred (1).This is my Ipod 32 GB, which is out of warranty and is 1G-A1213 and had gone kaput, after having issues with iTunes Software as it was not able to run Music on my IPod when conn

The iPod "iPod" could not be restored. An unknown error occurred (1).This is my Ipod 32 GB, which is out of warranty and is 1G-A1213 and had gone kaput, after having issues with iTunes Software as it was not able to run Music on my IPod when connected.
I have wasted my precious 2 days and nights and am lost all my hope...APPEAL TO ALL GEEKS TO RESOLVE MY ISSUE ON HUMANITARIAN GROUNDS ATLEAST WITH SOME VALID TIME OF YOURS.
All mails can be sent to [email protected]
Restore of Ipod back up is present...but is not getting restored due to some iTunes issue with playing my music files.It says restoring and extracts but failes in 1 min with the said error.

Other users and reported error 1 but I have not seen a solution.
Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar

HT1267 While upgrading my iPhone 3 to 4.2 something went wrong and would not start at all. When tried to restore after going through th process it comes up with the message "The iPhone could not be restored. An unknown error occurred [1015]." What can I d

While upgrading my iPhone 3GS to iOS 4.2 something went wrong and came up with the message "The iPhone could not be restored. An unknown error occurred [1015]." Now it will not start at all. It just stays on screen with USB and the iTune picture. What can I do to get it going again. I only tried to upgrade because I was prompted to up-grade and now I am helpless. I did a backup before starting the upgrade. The error message did not tell what to do next. Any help is very much appreciated.

Usually that means the iPhone was hacked to unlock it from the original
carrier .
Updating the operating system locks it back to that original carrier
You could try this
http://support.apple.com/kb/TS3281
However if the iPhone was hacked it is probably a paper weight now
and as this is an Apple hosted forum you can get no further help here

Help. I am all of a sudden having download errors and get the message /Users/MWP/Downloads/PFMS_vball_sched-4.pdf could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file.

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