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Jul 29, 2016 - 2 minute read - Selenium Simplified Blog WebDriver

First impressions of Selenium WebDriver 3.0.0 beta 1

TLDR; Selenium 3 WebDriver is pretty much a drop in replacement for Selenium 2 WebDriver

The 3.0.0 Beta v1 version of WebDriver has been released and my first Impressions of Selenium 3 beta are very good.

And first impressions means, can I run the stuff I have already.

I amended the pom.xml to bring the release down from maven central.

<!-- <webdriver.version>2.53.1</webdriver.version> -->

So I effectively included it as


Since WebDriver now needs Java 1.8 so I’ll bump the language dependencies in pom.xml


In my test code I’ve been using a base64 encoding implementation bundled with Selenium, for working with screenshots

//import org.bouncycastle.util.encoders.Base64;

Since WebDriver now needs Java 1.8, I’ll just use the decoder in Java 1.8 instead

//Base64 decoder = new Base64();
//byte[] imgBytes = (byte[]) decoder.decode(tempImageFileAsBase64);
byte[] imgBytes = Base64.getDecoder().decode(tempImageFileAsBase64);

With WebDriver 3.0.0-beta1 on Windows 10

  • FirefoxDriver && Firefox 47.0.1 - all tests passed
  • ChromeDriver v2.22.397933 && Chrome Version 52.0.2743.82 m - all tests passed
  • IEDriverServer (32 bit) v2.53.1 && IE 11.494.10586- 1 test failed
  • HTMLUnit 2.21 - 28 tests failed
  • Marionette v 0.9.0 (64 bit)&& Firefox 47.0.1 - 65 tests failed
  • Edge v 10586- 70 tests failed

3.0.0-beta1 defaults to Marionette, so to use the internal FirefoxDriver we can

  • set a capability

    DesiredCapabilities legacyCapabilities = DesiredCapabilities.firefox(); legacyCapabilities.setCapability(“marionette”, false); WebDriver aDriver = new FirefoxDriver(legacyCapabilities);

Code suggests that the plan is to allow us to:

  • set a system property “webdriver.firefox.marionette”

But I couldn’t get that to work:

  • -Dwebdriver.firefox.marionette=false
  • System.setProperty(FirefoxDriver.SystemProperty.DRIVER_USE_MARIONETTE, "false");

It doesn’t look like that has been coded for yet. Although I can now see that this was present in 2.53.1 as well (I didn’t notice that before)(I couldn’t get it to work in 2.53.1 either).

So - set the capability for now to switch between Marionette and legacy driver in Selenium WebDriver 3.0.0-beta1.

The MarionetteDriver that I’ve been using will be deprecated and we’ll use the FirefoxDriver for both Marionette and Legacy - with just a toggle of the capability.

And with that I guess I’m ready to migrate to 3.0.0 when it moves out of beta.

Pretty much the drop in replacement that the selenium team have been working towards. Another A+

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