using Mac 2005010304-trunk tbird bits on OS X 10.3.7, the toolbar icons are missing the js console window. also, if I context-click the toolbar no context menu appears, thus unable to customize the toolbar. (which, btw, isn't a problem for the mail 3pane or AB windows.)
The first issue is a dupe of 274564. Firefox and Thunderbird share the JS console skin. JS toolbar never had the Customize... option. You can turn this bug into an enhancement request to make it customizable though.
ah, didn't realize that about the customize option in the js console. morphing... thanks for the reminder about the toolbar issue also being a firefox bug.
firstname.lastname@example.org: that's nice, except that there are a couple of jsconsoles out there and the one this was reported against is probably currently owned by firefox (it belongs in toolkit).