Firefox add-ons

Question

What Firefox add-ons do you use that are useful for programmers?

Answer 1

Some of which has been missed above are here

• Load Time Analyzer – View detailed graphs of the loading time of web pages in firefox. The graphs display events like page requests, image loading times etc.

• Poster – A must have tool for web developers enabling them to interact with web services and other web resources.

• Aardvark – A cool extension for web developers and designers, allows them to view CSS attributes, id, class by highlighting page element individually.