# Netscape 6

This section describes the primary features of the Java runtime in Netscape 6, which is enabled by Java Plug-in. It includes the following topics:

- `APPLET`, `EMBED` AND `OBJECT` Tag Support
- Java-JavaScript Bi-directional Communication
- RSA Signed Applet Verification
- Display of Java Console
- Enable/Disable Java
- Applet Lifecycle Change
- Proxy and Cookie Support
- HTTPS
- Automatic Download
- Backward Compatibility Issue

### `APPLET` Tag Support

Applets are loaded by Java Plug-in if the conventional `APPLET` tag is used.

## Note: Currently the `OBJECT` and element does not work with Netscape 6 with Java Plug-in. You must use the `APPLET` or `EMBED` element with Netscape 6.

### Java-JavaScript Bi-directional Communication

JavaScript can access the methods of applets, and applets can access the Document Object Model (DOM) through JavaScript.

See Java-to-JavaScript Communication and JavaScript-to-Java Communication. Be sure to read the sections on security.

### RSA Signed Applet Verification

RSA signed applet verification is supported.

### Display of Java Console

You may display the Java Console through the Netscape 6 browser menu: Tasks>Tools>Java Console.

### Enable/Disable Java

You may enable/disable Java through the Netscape 6 browser menu: Edit>Preferences>Advanced. Note that to take effect, the browser must be restarted.

### Applet Lifecycle Change

Whenever a page is visited, the `init()` and `start()` methods of the applet are called; and whenever the page is left, the `stop()` and `destroy()` methods may be called.

### Proxy and Cookie Support

Java Plug-in previously handled proxy and cookie support alone. In Netscape 6 this support is moved to the browser.

### HTTPS

HTTPS is supported through Java Secure Socket Extension (JSSE) in J2SE.

### Automatic Download

Via its XPInstall mechanism, Netscape 6 will support automatic download of Java Plug-in (JRE) if it is not present.

### Backward Compatibility Issue

Although Sun has tried to ensure backward compatibility as much as possible between Java 2 and the Netscape VM, it may not be 100%. Some applets may run as is; other may only need recompilation; others, however, may need to be ported to Java 2.