Running Slackware64 & Xfce4.6
Firefox 13.1 is loading extremely slow & crash firefox + Xfce. Updated all addons & plugins... only AdBlock and NoScript are enabled. Add 2GB Ram to 2GB prior for total of 4GB.

Upon closing Xfce the following appears:
firefox:2322:Gtk-Critical **: IA_gtk_clipboard_set_with_data: assertion 'targets 1= NULL' failed
Note: Child process recieved 'Goodbye', closing down.

Message: xfsm-shutdown helper.C:268: Using HAL to shutdown / reboot the computer.
(Xfce4-session:2272) Warning failed to shutdown the GConf daemon on Logout.

I googled the messages and would appreciate if more experienced folks here could help me learn to configure GTKConf to work withI've firefox properly and GConf which I would like to keep around for gnome app dependencies as needed. Links to tutorials or related information are welcomed.

Maybe XFCE is the problem, try a different DE or WM and see if it helps.

I don't see how Xfce could be the problem? If anything it is probably a bug in Firefox, but not Xfce.

There is a more recent thread about memory leaks in Terminal. That could crash both XFCE and Firefox as described here. Firefox alone can't crash both.

Google gives friendly suggestions like 'adblock crashing firefox', 'Adblock and noscript causes firefox crash' and so on.

Let us know.

I've seen that thread, but I've never seen the problem on my system with Xfce 4.6.2, 4.8, or 4.10, and all on current. I've had problems running Thunderbird in 4.10, but not Firefox or SeaMonkey and it appears to be a known bug in Thunderbird.

Ran top and cpu usage & memory don't seem to high for live stlive stream, open terminal, multiple browsers. Changed the WM, JRE was upgraded and changed a few browser configs per the following:
http://fixexe.com/how-to-fix-website...ed-up-firefox/
Loading pages is still very slow. GTK error message is gone. Have Geostream message on shutdown now??

Going to recompile current kernel see if that helps. Just one question: Why is this so "DO NOT compile a pre-release kernel as root."? From http://blog.tpa.me.uk/slackware-kernel-compile-guide/ Thank you all.

Just to add, I have come come across the same issue a few times now. processes get killed or cannot start, and htop shows a "terminal" process eating up most of the available memory.

Is there anything known about the issue by now? Goggle is remarkably quiet on this one.

I am on slackware64-current, running XFCE, firefox, terminal on a regular basis.

Try a newer version of Terminal or try lilyterm.

shall do when the XFCE update comes along in -current.