[FireFox] AJAX fetch works when FireBug enabled, not when disabled?! Ideas?

[zq29]

I'm fetching some data using some Ajax, which works great in IE and Opera, but doesn't work at all in FireFox, unless that is, if I switch on FireBug - Then it works perfectly. This is very odd - Has anyone experienced this before, and is there anything I should be looking for specifically to fix this issue?

[Daniel0]

Weird. Which error do you get when Firebug is off?

[zq29]

That's the thing, I'm not getting any errors of any description. Though, the content that is being fetched is being loaded into a sliding-down-scriptaculous-thingy, so maybe it is actually being loaded, but after the slider has slid. And it might be loading with FireBug switched on due to the increased load time as a result of FireBug analysing it. That might not have made any sense outside of my head. I'll investigate further...