*) DOM Inspector:
By default on Ubuntu the firefox DOM inspector isn’t enabled and when reading “Programmin Firefox” it is one of the recommended tools
But it isn’t enabled by default, apparently this is the case for Windows also where you need to do a custom install to get it. For Ubuntu I installed it via synaptic as firefox-dom-inspector I also added firefox-dbg and firefox-dev. Interesting, it wasn’t available right away and I needed to reboot the system, although there may be other ways.
*) Java script parsing bugs
At the moment, 20070602, I don’t see parsing errors for java script files I create?
*) Java script runtime debugging:
Method one: run FF from the command line with the -console option: wink@ic2d1:~$ firefox -console & and then use “dump” commands to print strings to the console.
Method two: use Venkman debugger. Again, wasn’t available by default, I used Toos->Add-on and navigated to “Web and developer tools” and searched for debugger, the Venkman debugger was the first choice. Seleting this and the “Install Now” button installed it.
*) Venkman debugger:
To get Venkman to debug my overlay I had to enable browser files: Goto menu item “Debug/Exclude Browser Files” and be sure it is not checked. The list of files will then expand and my script “sl.js” was visible. A break point could then be set.