用于doubleclick的double_click方法不适用于firefox浏览器 . 因为它显示以下错误消息 . 相同的方法适用于Chrome浏览器 .

错误消息：

Selenium :: WebDriver :: Error :: InvalidElementStateError：无法执行本机交互：无法获取元素的节点 - 无法进行交互 . 来自[remote server] file：/// C：/Users/Niresh/AppData/Local/Temp/webdriver-profile20141004-2520-nez9f5/extensions/fxdriver@googlecode.com/components/driver-component.js:9918:3 ：来自[remote server] file：// C：/Users/Niresh/AppData/Local/Temp/webdriver-profile20141004-2520-nez9f5/extensions/fxdriver@googlecode.com/components/driver-component.js中的generateErrorForNativeEvents' ：10037：7：inFirefoxDriver.prototype.mouseDoubleClick'来自[远程服务器]文件：/// C：/Users/Niresh/AppData/Local/Temp/webdriver-profile20141004-2520-nez9f5/extensions/fxdriver@googlecode.com/组件/命令处理器 . js：11612：16：在[remote server]文件的DelayedCommand.prototype.executeInternal_ / h'中：/// C：/ Users / Niresh / AppData / Local / Temp / webdriver-profile20141004-2520-nez9f5 / extensions / fxdriver @ googlecode.com/components/command-processor . js：11617：7：来自[远程服务器]文件的inDelayedCommand.prototype.executeInternal_'：/// C：/Users/Niresh/AppData/Local/Temp/webdriver-profile20141004-2520-nez9f5/extensions/fxdriver@googlecode.com /组件/命令处理器 . js：11559：5：在DelayedCommand.prototype.execute / <'from C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/response .rb：52：inassert_ok'来自C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/response.rb:15:in initialize'来自C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/common.rb:59:innew'from C：/ Ruby193 / lib / ruby / gems / 1.9.1 / gems / selenium-webdriver-2.43.0 / lib / selenium / webdriver / remote / http / common.rb:59:in create_response'from C：/ Ruby193 / lib / ruby / gems来自C：/Ruby193/lib/ruby/gems/1.9.1/gems的/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/default.rb:66:inrequest' /selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/common.rb:40:in来自C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver- 2.43.0 / lib / selenium / webdriver / remote / bridge.rb：638：inraw_execute'来自C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43 .0 / lib / selenium / webdriver / remote / bridge.rb：616：执行'来自C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/ webdriver / remote / bridge.rb：381：indoubleClick'来自C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/common/mouse.rb： 22：在来自C的double_click'中：/Ruby193 / lib / luby / gems / 1.9.1 / gems / selenium-webdriver-2.43.0 / lib / selenium / webtor / common / action_builder.rb：344：inblock in perform'from C：/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/common/action_builder.rb：343：在每个'来自C：/ Ruby193 / lib / ruby / gems / 1.9.1 / gems / selenium-webdriver-2.43.0 / lib / selenium / webdriver / common / action_builder.rb:343:perperform'from C：/Ruby193/lib/ruby/gems/1.9.1/ gems / watir-webdriver-0.6.11 / lib / watir-webdriver / elements / element.rb：150：在`double_click'中