tom

profile.java

  File tempDir = TemporaryFilesystem.getDefaultTmpFS().createTempDir("userprofile", "copy");
		try {

			File certdb = new File(tempDir, "cert8.db");
			writeResourceToFile(certdb, "cert8.db", Demo.class);
			// Delete the old compreg.dat file so that our new extension is
			// registered
			File compreg = new File(tempDir, "compreg.dat");
			if (compreg.exists()) {
				if (!compreg.delete()) {
					throw new WebDriverException("Cannot delete file from copy of profile ");
				}
			}
		} catch (IOException e) {
			throw new WebDriverException(e);
		}

		FirefoxProfile profile = new ProfileFromDirectory(tempDir);

		DesiredCapabilities cap = DesiredCapabilities.firefox();
		cap.setCapability(FirefoxDriver.PROFILE, profile);
		cap.setVersion("4.0");