During page load, when does Firefox autofill / autocomplete forms?

Question

I'm troubleshooting a weird bug with a web app prototype and knowing when, precisely, Firefox autofills / autocompletes form fields would be useful. I have a small specialized audience and only need to target Firefox 3.6+. For this question, there is no server interaction beyond initial page load.

This question is just about the order of operations during page load & reload since 1. that's really useful information and 2. concerted searching didn't turn up any answers (or even hints).

Answer 1

I don't think you can intervene in this process.
But if you want to prevent this you need to set the autocomplete attribute to off:

<input autocomplete="off"... />