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Special pages
  about:config      low level configuration settings and values
  about:plugins     list plugins and versions

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Clean and shrink the varius .sqlite databases

Shutdown firefox and run
  for i in *.sqlite
  do
    ls -Fla $i
    sqlite3 $i VACUUM
    ls -Fla $i
  done

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Firefox horizontal scroll fix

  Goto "about:config"
  find "mousewheel.horizscroll.withnokey.action"
  Set this to 1   NB: 0 = disable  1 = horiz scroll  2 = back/forward

This seemed to have been fixed in Fedora/Omega 10
However with ALT key held, Horizontal Scroll does Back/Forward :-)

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