Tabs open at end in firefox

When I installed ubuntu 10.04 firefox started to open new tabs not at the end (where i can find them easily) but after the tab I was working.

"Reclaim" your new tab at end of the tabs by
....
If you don’t want new tabs to be affected, go to
about:config
(see http://kb.mozillazine.org/About:config for more info)
and make false (by double clicking it) the preference
browser.tabs.insertRelatedAfterCurrent
...
(maybe other versions of firefox have something like this so find it by yourself)

VirtualBox can't operate in VMX root mode

Try disabling kvm module...
"modprobe -r kvm_intel" with root privileges. This worked for me...

from:
http://forums.virtualbox.org/viewtopic.php?t=7796

(worked also for me)