Embedded Firefox XUL Support

An embedded XUL-based Firefox browser will be available to preview content from the HTML Editor.
A preference page will also be added to allow configuration of what preview browsers are displayed in the HTML editor.
The Firefox browser will also come with a DOM outline in the Outline view which will show the rendered DOM being displayed in the browser.
Selections made to the Firefox outline will highlight the node in the browser.
An extension point will be created that will allow browsers and outlines to be contributed to the HTML editor.

Install requirements

Build 0.2.8.13195 or later is required for the XUL feature. You can update to this build by updating to the latest "nightly" release.

Important Note: This feature is currently available for Windows. Linux users have Firefox installed by default.

From inside Eclipse/Aptana select Help->Software Updates->Find and Install...
Select Search for new features to install and select Next
Add the following as a remote site by using the "New Remote Site..." button: http://update.aptana.com/update/xul
Make sure only the new site created is checked and select Finish
Install the feature listed
Important: Select No when prompted to restart after installation has completed and follow post install steps.
Post install steps (only needed to be performed once):
- Aptana standalone users:
  - Close Aptana
  - Open a Command Prompt and navigate the to directory containing Aptana
  - Run the following command: "aptana -clean". This is required to pick up new changes to the Eclipse browser plug-in.
- Aptana plug-in users:
  - Close Eclipse
  - Open a Command Prompt and navigate to the directory containing Eclipse
  - Run the following command: "eclipse -clean". This is required to pick up new changes to the Eclipse browser plug-in.

To enable browser:
- Go to Window->Preferences
- Open the Aptana->Editors->HTML Editor->Preview preference page
- Check the box for Firefox and select OK.
- Open a file in the HTML editor and the Firefox preview will be there