[UB355]

Netscape 7 is a commercialized version of mozilla with a built in pop up blocker built in.

[Maedhros]

Mozilla and Netscape are basically the same thing, but I prefer the open source variety free from the taint of AOL.

[RayChuang88]

Netscape 7 is a commercialized version of mozilla with a built in pop up blocker built in.

However, be aware that only Netscape 7.01 and 7.02 offer the ability to control pop-up windows. The original Netscape 7.0 release lacked this capability. Anyway, if you're an EarthLink subscriber you can get a free pop-up ad blocker that works with Internet Explorer for Windows 5.01 Service Pack 2 to 6.01 Service Pack 1.