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how do i turn off scrolling line by line?

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i used to be able to use the arrow keys on my keyboard to smoothly scroll through webpages. Now when I use the up or down arrow keys, it causes the page I am on to jump either to the top of the page or the bottom of the page. How can I reverse this and go back to smooth scrolling using these keys?

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You may be in Caret Browsing Mode. F7 is the on/off key for that mode. Tap F7 once, and try scrolling. See:


You need to update your plug-ins. It is important to keep them updated due to continuing security fixes and improvements in those plug-ins:

  • Adobe Shockwave for Director Netscape plug-in, version 11.0
  • Adobe PDF Plug-In For Firefox and Netscape (you may need to update)
  • Shockwave Flash 10.0 r22
  • Java Plug-in 1.6.0_07 for Netscape Navigator (DLL Helper)
  1. Check your plugin versions: http://www.mozilla.com/en-US/plugincheck/
    • Note: plugin check page does not have information on all plugin versions
  2. Update Shockwave for Director
    • NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player.
    • Use Firefox to download and SAVE the installer to your hard drive from the link in the article below (Desktop is a good place so you can find it).
    • When the download is complete, exit Firefox (File > Exit)
    • locate and double-click in the installer you just downloaded, let the install complete.
    • Restart Firefox and check your plugins again.
    • Download link and more information: http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox
  3. Update Adobe Reader (PDF plugin):
    • From within your existing Adobe Reader (if you have it already installed):
      • Open the Adobe Reader program from your Programs list
      • Click Help > Check for Updates
      • Follow the prompts for updating
      • If this method works for you, skip the "Download complete installer" section below and proceed to "After the installation" below
    • Download complete installer (if you do NOT have Adobe Reader installed):
      • Use Firefox to download and SAVE the installer to your hard drive from the link in the article below
      • On the Adobe page, un-check any extra items (i.e. Free McAfee® Security Scan Plus) then click Download button
      • If you see message just under tabs, DO NOT click the Allow button, instead click below that where it says "click here to download".
      • Click "Save to File"; save to your Desktop (so you can find it)
      • After download completes, close Firefox
      • Click the installer you just downloaded and allow the install to continue
        • Note: Vista and Win7 users may need to right-click the installer and choose "Run as Administrator"
      • Download link and more information: https://support.mozilla.com/en-US/kb/Using+the+Adobe+Reader+plugin+with+Firefox#Installing_and_updating_Adobe_Reader
    • After the installation, start Firefox and check your version again.
  4. Update Shockwave Flash
  5. Update Java: https://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox

Được chỉnh sửa bởi Helper7677 vào

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Although possibly not related to your problem, I have to remind you that the version of Firefox you are using at the moment has been discontinued and is no longer supported. On top of this, it has known unpatched bugs and security problems. I urge you to update to the latest version of Firefox, for maximum security, stability, performance and usability. You can get it for free, as always, at getfirefox.com.

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