Page up and page down buttons don't work.
When I am on any webpage, the page up and page down buttons do not work. I have had Firefox 4 pre-release for about a month now and reported this issue over and over and over again but nothing. Is everyone else having this problem?
Sometimes when I open the browser it works for a little bit then stops working. Then the page up and page down button become the forward and backward browsing buttons.
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Im my case, hitting F7 to turn "Caret browsing" off solved the problem. See post : http://example.com http://support.mozilla.com/en-US/kb/Unable%20to%20scroll%20with%20arrow%20keys
See also:
- Bug 640587 - Page up/down behaviour changes to "page back/forward"
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