How to have favicon / icon set when bookmarklet dragged to toolbar?

Question

I\'ve made myself a bookmarklet, and it functions just fine, but when added to a toolbar in Opera or Firefox, it just takes on the default bookmark icon for the browser (a g

Answer 1

A bookmarklet uses the javascript:// schema and thus do not have a domain from which a favicon may be loaded.

So, currently there is no way for you to provide a favicon for a bookmarklet. Think about it like this: remember the whole Javascript sandbox thing - where Javascript may not access anything outside the domain of the web page where it is running? Well a bookmarklet that needs to be tied in to whatever domain for the current page you are watching, cannot be also tied in to a favicon on your own web site.

Update: According to Hans Schmucker's answer, there is a possibility to create a bookmarklet that when loaded by the browser into the bookmark menu it will generate an HTML document that has a favicon. The reasoning seems like it may work but I have yet to see something like this in action and my tests have came back negative.