Firefox 33 https://www.mozilla.org/en-US/firefox/33.0/releasenotes/
Activate PDF viewing by default with plugin.default.state set to 2, see #163
Introduce tabswitch=SECOND for webcfullscreen & neon, to cycle between tabs by SECONDs specified
Bring neon extension upto sync with https://github.com/Webconverger/webconverger-addon/commit/1e83ed0e2f1b47e02939a135fd48aafdc554127d