What's a good Firefox extension for autopopulating forms while testing?

Question

What's the best Firefox extension for auto-populating forms while testing?

Preferably one which allows you to not collect data from certain sites ... I only want to use it while testing.

Answer 1

I like selenium. This allows you to record and playback tests. It will also create tests in a variety of languages that can be run on multiple browsers.

Answer 2

The web developer toolbar has a great Forms > Populate Form Fields command which will fill in a textbox's value with it's name attribute and automatically select checkboxes and items from radio button sets.

Answer 3

FormBug is what you're looking for. You'll need Firebug with it...