I don't use the package, the preview does work here though (nothing changed). Have you tried clean profile? -- View this message in context: http://freebsd.1045724.n5.nabble.com/firefox-47-0-1-1-built-in-PDF-viewer-does-not-work-tp6109961p6111099.html Sent from the freebsd-questions mailing list archive at Nabble.com.