I'm not sure if this is the right forum but if it's not please direct me to the correct one. I am trying to build a firefox toolbar and am having problems with the GUI. Are there any programs that I can use which will let me design the toolbar and then produce the code for me, instead of having to try and code everything? Alternatively, I have created the design in flash, could this be somehow converted into a toolbar?
A Firefox toolbar GUI has to be built out of XUL [mozilla.org]. I don't know of any WYSIWYG editors or converters. XUL is an XML language (like HTML) so it's not that hard to pick up, and this is the right forum if you have questions about it.
And from what I know of building FF toolbars (I've created several), Flash is probably the wrong meduim to do your "sketches" - since you can't pull off vector effects and shapes, tweens etc when the GUI is made out of XUL. I'd start with a pencil and paper instead :)
Take a screen capture of your Flash designs, and chop them up into sprites with Photoshop, because you're going to need to style your toolbar with CSS.