Bug 885965 - Change browser_typeAheadFind.js to use load event instead of pageshow event. r=ttaubert

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extra : rebase_source : 4a5debbc10c50f41c7bbd5c45191daa152189997
Bug 882977 - Identity state of IDENTITY_MODE_UNKNOWN is set for about:home when a new window is created. r=dao

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extra : rebase_source : 9c5e5f06645018333515dba89d4fc84cf9445338