James Robertson recently did a screencast where he demonstrates starting a external web browser from Cincom Smalltalk VisualWorks. This uses the ExternalWebBrowser package which Travis blogged about back in March.
There is a development stream for the Tools-RefactoringBrowser bundle, which Travis has blogged about. One of the things he did was use the functionality from the External-WebBrowser in the development browser so you can click on URLs and spawn a web browser. With Travis' permission, I pulled out the extensions that added the Text emphasis for URLs into its own package, ExternalWebBrowser-Text.
It dawned on me the other day, I'd like the behavior of clicking in URLs in the browser without having to load the development stream of the Tools-RefactoringBrowser bundle. It would also be nice to have the feature on the published items tool and Workspace. So, I've published the ExternalWebBrowser-ToolOverrides package to the Cincom public repository which by overriding three methods adds this functionality.