According to ComputerWorld Google’s Chrome is on the brink of replacing Firefox as the second-most-popular browser, says the Web statistics firm StatCounter, which shows that Chrome will pass Firefox to take the No. 2 spot behind Microsoft’s IE no later than December. As of Wednesday, Chrome’s global average user share for September was 23.6%, while Firefox’s stood at 26.8%. IE, meanwhile, was at 41.7%. The climb of Chrome during 2011 has been astonishing: It has gained eight percentage point since January 2011, representing a 50% increase. During that same period, Firefox has dropped almost four percentage points, a decline of about 13%, while IE has also fallen four points, a 9% dip. That means Chrome is essentially reaping all the defections from Firefox and IE.