I can confirm this bug. Both iceweasel and epiphany-gecko fail with libc6 2.9-11. Epiphany starts and is able to browse websites, but hangs when downloading a file.
The mirror I was using did not contain 2.9-11, so I downgraded to 2.9-4. Although 2.9-10 did work. Here is reportbug information for libc6 (already downgraded to 2.9-4), iceweasel, and epiphany-gecko. -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.29-2-amd64 (SMP w/2 CPU cores) Locale: LANG=lt_LT.UTF-8, LC_CTYPE=lt_LT.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages iceweasel depends on: ii debianutils 3.1.3 Miscellaneous utilities specific t ii fontconfig 2.6.0-3 generic font configuration library ii libc6 2.9-4 GNU C Library: Shared libraries ii libglib2.0-0 2.20.1-2 The GLib library of C routines ii libgtk2.0-0 2.16.1-2 The GTK+ graphical user interface ii libnspr4-0d 4.7.4-2 NetScape Portable Runtime Library ii libstdc++6 4.4.0-4 The GNU Standard C++ Library v3 ii procps 1:3.2.7-11 /proc file system utilities ii psmisc 22.6-1 Utilities that use the proc filesy ii xulrunner-1.9 1.9.0.10-1 XUL + XPCOM application runner Versions of packages epiphany-gecko depends on: ii dbus-x11 1.2.12-1 simple interprocess messaging ii epiphany-browser-data 2.26.1-1 Data files for the GNOME web ii gnome-icon-theme 2.24.0-4 GNOME Desktop icon theme ii iso-codes 3.9-1 ISO language, territory ii libavahi-client3 0.6.25-1 Avahi client library ii libavahi-common3 0.6.25-1 Avahi common library ii libavahi-gobject0 0.6.25-1 Avahi GObject library ii libc6 2.9-4 GNU C Library: Shared libraries ii libcanberra-gtk0 0.11-1 Gtk+ helper for playing widget ii libcanberra0 0.11-1 a simple abstract interface for ii libdbus-1-3 1.2.12-1 simple interprocess messaging ii libdbus-glib-1-2 0.80-4 simple interprocess messaging ii libenchant1c2a 1.4.2-3.3 a wrapper library for various ii libgcc1 1:4.4.0-4 GCC support library ii libgconf2-4 2.26.0-1 GNOME configuration database ii libglade2-0 1:2.6.4-1 library to load .glade files at ii libglib2.0-0 2.20.1-2 The GLib library of C routines ii libgnome2-0 2.26.0-1 The GNOME library - runtime ii libgnomeui-0 2.24.1-1 The GNOME 2 libraries (User ii libgtk2.0-0 2.16.1-2 The GTK+ graphical user ii libnotify1 [libnotify1-gtk2 0.4.5-1 sends desktop notifications to ii libnspr4-0d 4.7.4-2 NetScape Portable Runtime ii libpango1.0-0 1.24.0-3+b1 Layout and rendering of ii libstdc++6 4.4.0-4 The GNU Standard C++ Library v3 ii libx11-6 2:1.2.1-1 X11 client-side library ii libxml2 2.7.3.dfsg-1 GNOME XML library ii libxslt1.1 1.1.24-2 XSLT processing library ii python2.5 2.5.4-1 An interactive high-level ii xulrunner-1.9 1.9.0.10-1 XUL + XPCOM application runner ii xulrunner-1.9-gnome-support 1.9.0.10-1 Support for GNOME in Versions of packages epiphany-gecko recommends: ii epiphany-extensions 2.26.1-1 Extensions for Epiphany web browse ii yelp 2.24.0-2 Help browser for GNOME 2 Versions of packages libc6 depends on: ii libgcc1 1:4.4.0-4 GCC support library Versions of packages libc6 suggests: pn glibc-doc <none> (no description available) ii locales 2.9-11 GNU C Library: National Language -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org