This article is incomplete and was first written in December 2006 for the BeezNest technical website (http://glasnost.beeznest.org/articles/351).
This is a small written note on the Firefox extensions that are practically very useful in our business and that should not be forgotten.
Web Developer Very good extension adding a lot of testing features to your browser
Snapper Allows you to take screenshots of what’s going on in your browser
Selenium IDE Allows you to capture a usage of your web browser and reproduce it for testing purposes
phplangeditor Helps translating PHP-format language files (and soon ini-format files)