I was experiencing the exact same problem with flashplugin-nonfree 1:2.8.3, but after downgrading to 1:2.8.2 it all worked OK.
Package: flashplugin-nonfree Status: install ok installed Priority: optional Section: contrib/web Installed-Size: 132 Maintainer: Bart Martens <ba...@debian.org> Architecture: amd64 Version: 1:2.8.2 Replaces: flashplugin (<< 6) Depends: debconf | debconf-2.0, wget, gnupg, libatk1.0-0, libcairo2, libfontconfig1, libfreetype6, libgcc1, libglib2.0-0, libgtk2.0-0, libnspr4-0d, libnss3-1d, libpango1.0-0, libstdc++6, libx11-6, libxext6, libxt6, libcurl3-gnutls Suggests: iceweasel, konqueror-nsplugins, x-ttcidfont-conf, msttcorefonts, ttf-dejavu, ttf-xfree86-nonfree, flashplugin-nonfree-extrasound Conflicts: flashplayer-mozilla, flashplugin (<< 6), libflash-mozplugin, xfs (<< 1:1.0.1-5) Description: Adobe Flash Player - browser plugin This package will download the Flash Player from Adobe. It is a Netscape/Mozilla type plugin. Any browser based on Netscape or Mozilla can use the Flash Player. This package currently supports the following browsers: Mozilla, Mozilla-Firefox, Firefox, Iceweasel, and Iceape. Also Galeon and Epiphany can use the Flash Player. Konqueror can also use the Flash Player if konqueror-nsplugins is installed. . WARNING: Installing this Debian package causes the Adobe Flash Player to be downloaded from www.adobe.com. The End User License Agreement of the Adobe Flash Player is available at www.adobe.com. Homepage: http://wiki.debian.org/FlashPlayer -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org