You have Firebug, right? And is this a fairly large JSON object? Disable Firebug and see what happens. If it goes at more the speed you expected, then the problem is the use of eval() in the current version of jQuery, which slows down badly with Firebug. This is fixed in the next release (it uses a Function constructor, which isn't slowed down by Firebug, instead of eval).
If that's not it, post a link to a test page? -Mike On Wed, Sep 16, 2009 at 7:38 AM, PanMarcepan <panmarce...@gmail.com> wrote: > > Hello I'm using jQuery and asp.net. > jQuery using getJSON calls specific handler, lets say MyHandler.ashx > > $.getJSON(/MyHandler.ashx?param1=someVal, function(data) { > ... some code; > } > > In Opera and Explorer this is executed immediately. In FireFox it > takes over 1s before request is executed. Even when I set breakpoint > in my handler it will be hit after 1s... could you tell me why it is > so slow? I got latest version of firefox. >