The access stats for the English Wikipedia in February 2004 were

Internet Explorer 79.6% of hits
Mozilla (inc Firefox) 12.2%
Opera 2.27%
Safari 2.25%
Netscape 4 1.35%
Konqueror 0.4%

Updated statistics, generated 19 October 2004:

Internet Explorer 6.0 – 54.92%
Internet Explorer 5.0 – 15.59%
Mozilla/Gecko – 11.49%
Opera – 3.32%
Safari – 2.80%
Internet Explorer 5.5 – 2.06%
Internet Explorer 5.01 – 1.45%
Internet Explorer (Mac) – 1.42%
Mozilla – 1.04%
Konqueror – 0.33%
Netscape 4.7 – 0.08%
Internet Explorer 4.01 – 0.07%
MSIE – 0.03%
Links (Text-based browser) – 0.02%
Netscape 4.8 – 0.02%
Netscape 4.5 – 0.02%
Lynx – 0.01%
Netscape 4 – 0.01%
iCab – 0.01%
w3m (Text-based browser - http://w3m.sourceforge.net/ ) – 0.00%
OmniWeb (Mac OS X) – 0.00%
Mozilla Firefox – 0.00%
Mozilla-based browser Camino (Mac OS X) – 0.00%

See also edit