progress indicator for opening apps

Using fluxbox 1.3.2 on xubuntu 12.04.

It takes a while to open firefox on this netbook, so it would be
handy to have some kind of an indicator that showed for the duration
of the application startup.

I don't need anything fancy like a spinning pinwheel, just some
visual indicator.

Recommedations?
thanks
-- 
Tim 
tim at tee jay forty nine dot com or akwebsoft dot com
http://www.akwebsoft.com, http://www.tj49.com

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