Page Up and Down keys won't work - have tried everything
My Page Up and Down keys won't work. I've tried hitting F7, the Fn key, checked that the "Always use cursor keys to navigate" box is not selected in the Advanced Options tab and made sure that the "Use autoscrolling" tab is selected. I tried uninstalling and re-installing Firefox, tried hitting buttons F1 through to F12 and then checked that accessibility.warn_on_browsewithcaret is set to 'true'.
It also won't work in Internet Explorer - I have no idea what else to try. My Up/Down arrows are working, just not the Page Up/Page Down buttons. Please help, this is driving me nuts. It's only just started happening; I've never had a problem with it before!
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What is the value of the pref accessibility.browsewithcaret on the about:config page?
Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
- Don't make any changes on the Safe mode start window.
See:
- Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems
- Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems
If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
- Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
- Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")