Firefox 3 - be careful of embarrassing titles

I was actually meaning tab completion in e.g., bash.  (shooting for a more general case than
just URL entry.)  In addition, the "interruption" I notice is mental--when the completion list
pops up, my brain screeches to a momentary halt ("ah, what's this then?"), and has to rebuild
some context before continuing.  It probably has more to do with mild symptoms of attention
deficit than anything else, but since that seems to be fairly common these days, I'm probably
not the only one...