For projects with Selenium2 as the driver, Twist by default executes all the scenarios in a single browser instance. The configurations for this setting is present in the applicationContext-suite.xml

However, executing all scenarios through a single browser instance might not be desirable in all cases. Follow the steps below to use a new browser instance in each Scenario.

• Open the applicationContext-suite.xml and applicationContext-scenario.xml file. These file can be accessed by searching using CTRL+SHIFT+R (or CMD+SHIFT+R on mac) or by navigating to the project's source directory in the Package Explorer View.
• Move all the selenium related bean configurations from applicationContext-suite.xml to applicationContext-scenario.xml

  Now, the applicationContext-scenario.xml should look like this:

  <?xml version="1.0" encoding="UTF-8"?>  
  <beans xmlns="http://www.springframework.org/schema/beans"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns:lang="http://www.springframework.org/schema/lang"
         xmlns:context="http://www.springframework.org/schema/context"
         xsi:schemaLocation=
          "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.0.xsd
          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
  
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
      <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/>
      <property name="locations">
        <value>classpath:twist.properties</value>
      </property>
    </bean>
    
    <bean id="webDriverFactory" class="com.thoughtworks.twist.driver.webdriver.WebDriverFactory"
          init-method="start" destroy-method="stop" lazy-init="true">
          <property name="enableNativeEvents" value="${webdriver.browser.nativeEvents}"/> 
          <property name="javascriptEnabled" value="${webdriver.browser.javascriptEnabled}"/> 
          <property name="htmlUnitBrowserVersion" value="${webdriver.browser.version}"/> 
          <property name="scriptPath" value="${webdriver.browser.script}"/> 
          <property name="profilePath" value="${webdriver.browser.profile}"/> 
          <property name="mobileServerAddress" value="${webdriver.mobile.server}"/> 
          <property name="chromeServer" value="${webdriver.chrome.driver}"/> 
    </bean>
    <bean id="browser" factory-bean="webDriverFactory" factory-method="getBrowser"
          lazy-init="true" destroy-method="quit" scope="singleton">
          <constructor-arg value="${webdriver.browser}" />
    </bean>  
    

• Save file applicationContext-scenario.xml and execute scenarios.