I should’ve blogged this the other day. I did a yum update, and BAM! mysql disappeared. So, I guess these instructions for upgrading MySQL on FC3 are not entirely flawless. However, they did do the job of getting MySQL 4.1 running. It just didn’t survive an update. If you’re looking to get it running for yourself, these steps will do the trick.
The JavaScript Shell lets you interactively run JavaScript commands, even against a particular window. This allows you to easily test out DOM manipulations you’re considering or, as the authors suggest, GreaseMonkey scripts.
Very nice, but it does not appear to be Safari compatible at all. Just goes to show that Firefox is far and away the best browser for development. I have found that Firefox’s tools are the easiest for getting things working, and then I deal with making things cross-browser.