This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ค้นหาฝ่ายสนับสนุน

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

เรียนรู้เพิ่มเติม

i have an error in the profile directory

  • 3 การตอบกลับ
  • 1 คนมีปัญหานี้
  • 1 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย cor-el

more options

i am taking online classes, we have to use firefox, when i go to copy and paste my assignment into the lesson i get an error, it says to go to the firefox directory and find the user.js file in that directory in text editor and change the firefox profile directory and add 4 lines user_pref ("capability.policy.policynames", allowclipboard"); it also has four other lines similar to this one to add. I do not know how to do this. Could I contact someone by phone to fix this. I have reinstalled the program and it still doesn't work.

i am taking online classes, we have to use firefox, when i go to copy and paste my assignment into the lesson i get an error, it says to go to the firefox directory and find the user.js file in that directory in text editor and change the firefox profile directory and add 4 lines user_pref ("capability.policy.policynames", allowclipboard"); it also has four other lines similar to this one to add. I do not know how to do this. Could I contact someone by phone to fix this. I have reinstalled the program and it still doesn't work.

การตอบกลับทั้งหมด (3)

more options

Hello,

Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:

Note: You might want to print these steps or view them in another browser.

  1. Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
  2. After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
  3. Delete the Firefox installation folder, which is located in one of these locations, by default:
    • Windows:
      • C:\Program Files\Mozilla Firefox
      • C:\Program Files (x86)\Mozilla Firefox
    • Mac: Delete Firefox from the Applications folder.
    • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
    1. Double-click the downloaded installation file and go through the steps of the installation wizard.
    2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

More information about reinstalling Firefox can be found here.

WARNING: Do not run Firefox's uninstaller or use a third party remover as part of this process, because that could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be recovered unless they have been backed up to an external device!

Please report back to see if this helped you!

Thank you.

more options

Hello jj3682, see the next kb articles for analytical informations :


note that you must restart firefox to effect the changes

thank you

more options

Use keyboard shortcuts if the buttons on the web page or other methods aren't working.

  • Copy: Ctrl+C or Ctrl+Insert (Mac: Command + C)
  • Paste: Ctrl+V or Shift+Insert (Mac: Command + V)
  • Cut: Ctrl+X or Shift+Delete (Mac: Command + X)