I had a lot of issues, including the Youtube issue (fullscreen was broken) and the Facebook issue you described. To solve the Facebook issue, simply right-click the Facebook page, select "Edit Site Preferences", and go to the Network tab and choose "Identify as Firefox" which should fix it. That said, many websites loaded very slowly for me, so I rolled back to Opera 11.61, which you can find here: http://www.filehippo.com/download_opera/11494/
. Hope I helped!
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