Mike_Boell

Q: Why Safari is not able to install add ons?

If I try to install a Add-on like a new web search it always says that it's not possible for Safari to install it. Any Add-On I klick in the Apple Add-On-page will say the same and can't be installed. With Firefox it works. What I'm doing wrong? iMac 27, mid 2011, 16 GB Ram, Yosemite 10.10.3.

iMac, OS X Yosemite (10.10.3), iMac 27, mid 2011, 16 GB Ram

Posted on Apr 16, 2015 1:06 AM

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Q: Why Safari is not able to install add ons?

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  • by dominic23,

    dominic23 dominic23 Apr 16, 2015 3:50 AM in response to Mike_Boell
    Level 8 (42,105 points)
    Mac OS X
    Apr 16, 2015 3:50 AM in response to Mike_Boell

      Can you take a  screenshot of the message and post it here please?

     

      https://support.apple.com/en-us/HT201361

  • by Mike_Boell,

    Mike_Boell Mike_Boell Apr 16, 2015 6:58 AM in response to dominic23
    Level 1 (0 points)
    Apr 16, 2015 6:58 AM in response to dominic23

    Here it is. it's in there german and just says that it is not possible to install. That an error occurred while Installation. That's all and with every add on I try.

     

    Bildschirmfoto 2015-04-16 um 15.55.37.png

  • by Linc Davis,

    Linc Davis Linc Davis Apr 16, 2015 11:26 AM in response to Mike_Boell
    Level 10 (208,037 points)
    Applications
    Apr 16, 2015 11:26 AM in response to Mike_Boell

    Back up all data before proceeding.

    Launch the Keychain Access application in any of the following ways:

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

    ☞ Open LaunchPad and start typing the name.

    Use the search box in the toolbar of the Keychain Access window to search for an item named "Safari Extensions List". If found, delete it. Quit Keychain Access.

    Quit and relaunch Safari.

  • by Mike_Boell,

    Mike_Boell Mike_Boell Apr 17, 2015 2:50 AM in response to Linc Davis
    Level 1 (0 points)
    Apr 17, 2015 2:50 AM in response to Linc Davis

    Hi Linc,

     

    I was confused about the steps to finde the Keychain app. I opend it directly without the steps you mentioned and deleted the Safari Extensions List. Safari was not active. The delete of the Extensions List didn't chang anything. It's like before, the safari extensions can't be installed.

     

    Did I have to make the whole procedure you described? Or was it only to help to find the KeychainApp?

     

    Greets Mike

  • by Linc Davis,Solvedanswer

    Linc Davis Linc Davis Apr 19, 2015 5:55 AM in response to Mike_Boell
    Level 10 (208,037 points)
    Applications
    Apr 19, 2015 5:55 AM in response to Mike_Boell

    Back up all data before proceeding.

    This procedure will unlock all your user files (not system files) and reset their ownership, permissions, and access controls to the default. If you've intentionally set special values for those attributes on any of your files, they will be reverted. In that case, either stop here, or be prepared to recreate the settings if necessary. Do so only after verifying that those settings didn't cause the problem. If none of this is meaningful to you, you don't need to worry about it, but you do need to follow the instructions below.

    Step 1

    If you have more than one user, and the one in question is not an administrator, then go to Step 2.

    Triple-click anywhere in the following line on this page to select it:

    sudo find ~ $TMPDIR.. -exec chflags -h nouchg,nouappnd,noschg,nosappnd {} + -exec chown -h $UID {} + -exec chmod +rw {} + -exec chmod -h -N {} + -type d -exec chmod -h +x {} + 2>&-

    Copy the selected text to the Clipboard by pressing the key combination command-C.

    Launch the built-in Terminal application in any of the following ways:

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

    ☞ Open LaunchPad and start typing the name.

    Paste into the Terminal window by pressing command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.

    You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.

    The command may take several minutes to run, depending on how many files you have. Wait for a new line ending in a dollar sign ($) to appear, then quit Terminal.

    Step 2 (optional)

    Take this step only if you have trouble with Step 1, if you prefer not to take it, or if it doesn't solve the problem.

    Start up in Recovery mode. When the OS X Utilities screen appears, select

              Utilities Terminal

    from the menu bar. A Terminal window will open. In that window, type this:

    resetp

    Press the tab key. The partial command you typed will automatically be completed to this:

    resetpassword

    Press return. A Reset Password window will open. You’re not going to reset a password.

    Select your startup volume ("Macintosh HD," unless you gave it a different name) if not already selected.

    Select your username from the menu labeled Select the user account if not already selected.

    Under Reset Home Directory Permissions and ACLs, click the Reset button.

    Select

               Restart

    from the menu bar.

  • by Mike_Boell,

    Mike_Boell Mike_Boell Apr 19, 2015 5:55 AM in response to Linc Davis
    Level 1 (0 points)
    Apr 19, 2015 5:55 AM in response to Linc Davis

    Hi Linc,

     

    thank you that's it. Your explanation was perfect. It works.

     

    Thank you very much.

     

    Mike