extensions like firebug added through webdriver is deactivated.how to activate it?
You must have messed up with your default firefox profile. Browser opened by Selenium will not have any extra plugins. Look at this article and set it back to default profile:
I Have not tried it yet but would you be able to give me one good reason for it, why do you want to load the firebug on the browser openend by the Selenium.
I rather suggest you to open up an default browser with Selenium which already have a Firebug installed. Most of the time default profile named as “default”, please check in your case
ProfilesIni profile = new ProfilesIni();
FirefoxProfile myprofile = profile.getProfile(“default”);
FirefoxDriver driver = new FirefoxDriver(myprofile);
Please close this question.