It won’t be the last Firefox extension that I’ll spotlight. Firebug is the gold standard of web debugging and not only that, is now really a platform for all of sorts of IDE hooks to allow in-depth web application testing. It’s just fantastic. If you’re a web developer in any sense of the word, you should be using it.
Migration Score
GREAT
Migration Options
Xylescope
CSSEdit
Coda
Firebug easily outdoes Xylescope and also contends well with the css and javascript components of Coda and CSSEdit, but note that Firebug is not an IDE for web programming like the latter two are.
How Good is the Linux App?
App name should be marketable
Has a nice app icon
Uses Tango icon guidelines
Slick UI that's fun to use
Killer feature people talk about
Good-looking website
Top-level domain name
Site has FAQs for users
Site has a User forum
Site has a way to contact the developers
Packages for Ubuntu, Fedora, and openSUSE