Web Browser macros

How good is this?

Record and replay your web activities with iMacros , a free extension for Firefox.

This powerful tool has countless applications. You can use it to fill in forms that stretch across multiple pages, to automatically log into a site and perform specific activities, or even to extract data from a site and save it as a CSV file. It’s particularly useful for web developers looking to test the performance and functionality of their sites. Macros can be edited, controlled with JavaScript and combined with other extensions such as Greasemonkey.