Created attachment 44743 [details] error_epiphany.png Simply try to visit the following: http://www.mma.es/secciones/el_ministerio/organismos/oapn/pdf/ecologia_21_08.pdf (this occurs with all pdfs I have tried), I only get a black window with epiphany and an error ("plugin will handle download") with midori. Downgrading to 1.1.6 solves the problem
Created attachment 44744 [details] error_midori.png
This has been fixed for a while.