selenium&Firefox不兼容问题:Message: Unable to find a matching set of capabilitie;Can't load the profile. Profile;Message: 'geckodriver' executable needs to be in PATH

问题1:

selenium.common.exceptions.WebDriverException: Message: Unable to find a matching set of capabilitie

问题2:

selenium.common.exceptions.WebDriverException: Message: Can't load the profile. Profile Dir: %s If you specified a log_file in the FirefoxBinary constructor, check it for details.

问题3:

Message: 'geckodriver' executable needs to be in PATH.

遇到这些问题,建议不用挣扎,检查下selenium-lib的版本和Firefox的版本号.

问题1,2属于Firefox过高,降级就行.Firefox历史版本:http://ftp.mozilla.org/pub/firefox/releases/

问题3,需要下载 geckodriver,selenium 3.+ 以上容易遇到,因为selenium3和selenium2启动机制不一样造成的.