Greasemonkey-like Firefox plugin for automatic browsing

Question

Is there a plug-in for Firefox that would allow user's Javascript code like Greasemonkey and be able to browse from page to page?

I'd like to write a script to:

1. Log in to a website.
2. Follow several links.
3. Make a GET request to that host periodically with given data and time intervals.
4. Make a POST request based on the results of the previous in-loop requests.

Now I use Python's mechanize for a browser so I'm looking for something with similar (maybe not that rich) functionality within Firefox. Do you have experience with that type of things? What should I check out?

Answer 1

Selenium - which has an interface for recording and running tests inside the browser but can also export tests in many languages including Python for running as a suite in the SeleniumRC tool.

Or

Chickenfoot (You'll probably need to use setTimeout for the repeating requests.)

_{(source: mit.edu)}