I uninstalled BDTS 2010 a couple of days back and installed it again.
After uninstalling i noticed that firefox startup took 5 to 10 seconds.
But if BDTS 2010 is installed then the startup takes 20 to 40 seconds.
vsserv.exe starts taking CPU resources during firefox startup.
No problems in other browsers like chrome or opera.
This is probably due to Antiphishing toolbar in firefox.
Disabling the toolbar from firefox-->Addons or disabling antiphishing module from BDTS 2010 does not seem to help.
Is there anyway to unregister/uninstall antiphishing toolbar from firefox?