Eclipse 4.3: No schema found for the extension point

PROBLEM: 

No schema found for the extension point. The warning occurred in "Extensions" tab of plugin.xml file. Look at the following screenshot:

Eclipse: Internal browser is not available: No more handles [Unknown Mozilla path (MOZILLA_FIVE_HOME not set)]

PROBLEM: I've got the following error message when was configuring Eclipse after installing a new Fedora 19:

Error
Unhandled event loop exception
org.eclipse.swt.SWTError: No more handles [Unknown Mozilla path (MOZILLA_FIVE_HOME not set)]
at org.eclipse.swt.SWT.error(SWT.java:4423)
at org.eclipse.swt.browser.Mozilla.initMozilla(Mozilla.java:1993)
at org.eclipse.swt.browser.Mozilla.create(Mozilla.java:701)
at org.eclipse.swt.browser.Browser.<init>(Browser.java:99)

SOLUTION: The solution was just install missed lib and restart Eclipse:

1. $ sudo yum install libwebkitgtk*
2. Restart Eclipse

Fedora 19 (64-bit) - Installation notes

1. Install Chrome

$ sudo nano /etc/yum.repos.d/google-chrome.repo

[google-chrome]
name=google-chrome - 64-bit
baseurl=http://dl.google.com/linux/chrome/rpm/stable/x86_64
enabled=1
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub

$ sudo yum install google-chrome-stable

2. Install gnome-tweeak-tool and customize it

$ sudo yum install gnome-tweak-tool

To run it, press Alt+F2 and type in 'gnome-tweak-tool'. Simple selecting the options performs the changes.

3. Add "Open Terminal" to Gnome Context Menu

$ sudo yum install nautilus-open-terminal

4. Install rpmFusion reposetory

$ sudo yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm