Firefox in Eclipse RCP

Question

I'm trying to use Firefox as my SWT Browser that runs inside my Eclipse RCP plugin.

I've tried loading XULRunner using the following code which I found here:

    Bundle bundle = Platform.getBundle(PLUGIN_NAME); //$NON-NLS-1$
    if (bundle != null) {
        URL resourceUrl = bundle.getResource("xulrunner"); //$NON-NLS-1$
        if (resourceUrl != null) {
            try {
                URL fileUrl = FileLocator.toFileURL(resourceUrl);
                File file = new File(fileUrl.toURI());
                System.setProperty(
                        "org.eclipse.swt.browser.XULRunnerPath", "file:///" + file.getAbsolutePath()); //$NON-NLS-1$
                System.setProperty("org.eclipse.swt.browser.DefaultType",
                        "mozilla");

            } catch (IOException e) {
                e.printStackTrace();
            } catch (URISyntaxException e) {
                e.printStackTrace();
            }
        }
    }
    Browser webBrowser = new Browser(parent, SWT.MOZILLA);

I'm using Windows 7 x86 and Eclipse Indigo. I have tried XULrunner 3.6.25 and 10. The Firefox version I used were 10 and 22.

No matter what version, it crashes giving this stacktrace:

org.eclipse.swt.SWTError: XPCOM error -2147467259
at org.eclipse.swt.browser.Mozilla.error(Mozilla.java:2502)
at org.eclipse.swt.browser.Mozilla.initXULRunner(Mozilla.java:2464)
at org.eclipse.swt.browser.Mozilla.create(Mozilla.java:672)
at org.eclipse.swt.browser.Browser.<init>(Browser.java:99)

If I remove the file:/// before the path to XULRunner I get the error c is not a registered protocol in XULrunner 3.6.25.

Does anybody know what this particular XPCOM error means and how to fix it?

First google result for "SWTError: XPCOM error": [Bug 174395 - Browser SWTError (XPCOM error -2147467259) when using the SWT 3.3 Broswer widget on Linux with Mozilla 1.7.8](https://bugs.eclipse.org/bugs/show_bug.cgi?id=174395) — Baz, Jul 15 '13 at 12:07
@Baz: Thanks. As I see it, the bug described is a 64 bit issue. But my environment is purely 32 bit. — Matthias Braun, Jul 15 '13 at 12:20

score 2 · Accepted Answer · edited May 23 '17 at 12:12

Building on this answer, these are the steps that made Firefox work for me inside Eclipse:

Install the Ajax Tools Framework (http://wiki.eclipse.org/ATF/Installing)
Under "Run Configurations..." -> "Plug-ins" add org.mozilla.xulrunner and org.mozilla.xulrunner.win32.win32.x86

Start Firefox within swt.browser using the following code:

Bundle bundle = Platform.getBundle("org.mozilla.xulrunner"); //$NON-NLS-1$  
if (bundle != null) {
    URL resourceUrl = bundle.getResource("xulrunner"); //$NON-NLS-1$
    if (resourceUrl != null) {
        try {
            URL fileUrl = FileLocator.toFileURL(resourceUrl);
            File file = new File(fileUrl.toURI());
            System.setProperty("org.eclipse.swt.browser.DefaultType",
                    "mozilla");
            System.setProperty(
                    "org.eclipse.swt.browser.XULRunnerPath", file.getAbsolutePath()); //$NON-NLS-1$

        } catch (IOException e) {
            e.printStackTrace();
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
    }
} else {
    System.err.println("Could not find XULrunner bundle");
}
Browser webBrowser = new Browser(parent, SWT.MOZILLA);
GridData grid = new GridData(GridData.FILL_BOTH);
webBrowser.setLayoutData(grid);
// Prepending "file://" prevents the "<driveletter> is not a registered protocol" error
String graphUrl = "file://C:/Users/you/yourGraph.html"
webBrowser.setUrl(graphUrl);

Firefox in Eclipse RCP

1 Answers1