I've found IE to be faster too. Usually when developing web apps I get things working in Firefox first then test in the other browsers. Lately I've been doing

I've found IE to be faster too. Usually when developing web apps I get things working in Firefox first then test in the other browsers. Lately I've been doing some work with Canvas and found IE to be the fastest for drawing large (many points) polygons(* ). I never thought I'd say this but it's been a lot more pleasant to develop in IE, at least during the proof-of-concept stage where I haven't done much optimizing or caching. (* ) I haven't benchmarked whether it's the canvas drawing or javascript engine (or both) that's faster, just that overall I'm getting 30+% better performance from IE