The External Preview view, which is part of the Install/Update perspective, is an embedded browser used to display html information. This view is available only on Windows systems.
In general, the External Preview is used when links are followed to html pages.
Like other views in the Workbench, the External Preview view has its own toolbar.
This command goes back in the chain of Preview pages.
This command goes forward in the chain of Preview pages.
This command navigates to the specified External Preview pages.
This command stops loading of the External Preview page.
This command reloads the External Preview page.
Updating Eclipse with the update manager