Well that is a slight overstatement … but it sure helped allot.
My main add-ons for helping with web development is Web Developer and livehttpheaders … anyone doing web development really should have the web developer toolbar… it really has been super useful.
I installed Firebug long long ago … and just thought that there was way too much going on. It did so much and I thought it was slowing down my web experience. The latter may be true, and really only enable when i am testing, no factual evidence, just plain logic … outputting all that stuff must slow frefox down.
So again my first view was, this thing was trying to do too much … then recently I had the nightmare task of working with someone else’s css / html site. Anyone who has ever had to do this, knows that this can be difficult for many reasons, a few:
- poorly structured css
- a bazilliongazillion css files
- “cascading” nature of css
Firebug has this nifty little “inspect” item … that tells all the css/dom/layout declarations that something uses … thank you thank you thank you…
There is so much more I am discovering little by little (tweaking css, javascript, network monitoring…) and while it won’t replace web developer toolbar for me .. it’s something you should do yourself a huge favor and get.