Web Developer Extensions

For Firefox I keep both the Firebug and Web Developer extensions ever handy. Both have their strong points and complement each other nicely (in my mind).

For IE(7) I’m partial to the Internet Explorer Developer Toolbar. It is a pretty solid “mix” of the two Firefox offerings. Really not all that bad and worth having if you need to test in IE (and who doesn’t?)

Opera offers their developer tools, but I’ve been underwhelmed (or confused) thus far by what I’ve seen. Are there other options — or should I look closer at these tools?

And heck, what about Safari (for windows)? Where are the plugins? Are there more than what I see at the official page?

So, with all that said: Am I missing any “must-have” web developer browser tools? Oh sure, I have some fave color-pickers and such, but I’m talking the stuff for heavy-lifting and debugging. What are some other good options for web page spelunking?

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