Similar case here. I experienced the same when trying to add an extension - e.g. if I try to add greasemonkey, I click the "add to firefox..." button on https://addons.mozilla.org/en- US/firefox/addon/748, I see the dialog appearing in a flash and then firefox closes.
Like the original submitter, I'm using the KDE4.1 packages; mine are from from ppa, in particular gtk-qt-engine-kde4 version 1.1+svn142-0ubuntu1~hardy1~ppa2 - I assume his is from ppa as well? Console output during crash is as follows: QPixmap: Invalid pixmap parameters The program 'firefox' received an X Window System error. This probably reflects a bug in the program. The error was 'BadAlloc (insufficient resources for operation)'. (Details: serial 55740 error_code 11 request_code 53 minor_code 0) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0xb7ecc767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb7ecc81e] #2 /usr/lib/libX11.so.6 [0xb6a26518] #3 /usr/lib/libXrender.so.1(XRenderFreePicture+0x41) [0xb6ad1ce1] #4 /usr/lib/libQtGui.so.4 [0xb4a93bb7] #5 /usr/lib/libQtGui.so.4 [0xb4a93fed] #6 /usr/lib/libQtGui.so.4(_ZN7QPixmap5derefEv+0x5b) [0xb4a89d4b] #7 /usr/lib/libQtGui.so.4(_ZN7QPixmapD2Ev+0x30) [0xb4a8a5e0] #8 /usr/lib/libQtGui.so.4 [0xb4a8ecaa] #9 /usr/lib/libQtGui.so.4 [0xb4a8f6b2] #10 /usr/lib/libQtGui.so.4 [0xb4a8dd86] #11 /lib/tls/i686/cmov/libc.so.6(exit+0xd4) [0xb7c6a084] #12 /usr/lib/libgdk-x11-2.0.so.0 [0xb660c637] #13 /usr/lib/libbonoboui-2.so.0 [0xb6224665] #14 /usr/lib/libX11.so.6(_XError+0xfe) [0xb6a1f73e] #15 /usr/lib/libX11.so.6 [0xb6a26e5c] #16 /usr/lib/libX11.so.6(_XReply+0x15a) [0xb6a2721a] #17 /usr/lib/libX11.so.6(XGetGeometry+0x70) [0xb6a043d0] #18 /usr/lib/libgdk-x11-2.0.so.0(gdk_pixmap_foreign_new_for_display+0x8f) [0xb660d3ff] #19 /usr/lib/libgdk-x11-2.0.so.0(gdk_pixmap_foreign_new+0x1a) [0xb660d48a] This is a non-debug build obviously. Just for fun I tried starting firefox with the --sync option; that made the dialog and main firefox window completely unresponsive, also to closing the application window. -- Applying KDE style to GTK applications causes them to crash when interacting with toolbars https://bugs.launchpad.net/bugs/254984 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs