I
​'m currently using Firebug 2.07 with Mac Firefox 34.

I'm trying to determine whether or not some complex code I'm working on has
a race condition -- or, more broadly, whether the various dependencies have
any timing problems. In addition to JS timers I'm using dom-ready type
scripts a lot to prevent things from happening in the wrong sequence -- in
fact I'm using three different "dom-ready" kind of utility functions --
onLoad, whenReady, and testForElms (that last one is my own).

Still, despite all these precautions, I don't feel I can test adequately
because my normal development server (Apache) is actually running on the
same machine as my browser (using MAMP). So the "network transit" is very
short/quick. I suppose I could upload the stuff to the live server on the
interwebs, but then since it's still under development I'd have to put it
in the password-protected section, and that affects how timing and caching
works, which is relevant to the code I'm writing. So I feel kind of stuck.

I know Firebug can show me timings (in the Net panel) and also has some
profiling code I could insert, but I don't want to see timings. What I want
is to _affect_ the timings without changing the code -- I mean slow down
and speed up the way the JavaScript is parsed and executed. Can Firebug do
this? That would be like simulating a slower or faster client computer.
Also, can Firebug simulate a slower or faster "network connection" between
the server and client? (I put it in quotes because, as I said, it's really
on the same machine.)

Thanks much.​

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