Hello Kimb3rly, try to [https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_turn-off-hardware-acceleration Turn off hardware acceleration], and check it again. In your system details, your user agent said you have 24.0 installed (User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0) thank you

can you try windows safe mode and see if it works there. * http://windows.microsoft.com/en-us/windows7/start-your-computer-in-safe-mode

Thans - didn't work.

Did this - didn't work.

Try to 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) ---- You may have switched on caret browsing. *http://kb.mozillazine.org/accessibility.browsewithcaret You can press F7 (Mac: fn + F7) to toggle caret browsing on/off. *Tools > Options > Advanced > General > Accessibility: [ ] "Always use the cursor keys to navigate within pages" *http://kb.mozillazine.org/Scrolling_with_arrow_keys_no_longer_works *http://kb.mozillazine.org/Accessibility_features_of_Firefox Create a new profile as a test to check if your current profile is causing the problems. See "Creating a profile": *https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles *http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files. *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox