Sensibly, the Firefox versions do not have a pop-up blocker at all because Firefox can do this itself.

BBC: [an error occurred while processing this directive]

In trying to lure new customers, EarthLink has taken a unique approach with the pop-up blocker, one that just may be enough to get users to switch.

FORBES: Magazine Article

The solution was simple: turn off my pop-up blocker.

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Those who had been taking the diuretic actually suffered fewer heart-failure hospitalizations and deaths than those who had been taking the up-market calcium channel blocker.

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U.S. Army Sergeant Matt Blocker(ph) climbs in his Humvee, then sizes up one of the Iraqi cops who will join this patrol.

NPR: On Patrol with the Iraqi National Police