Date: 2012oct12 Update: 2025oct9 Language: Java Q. Java: In a Java Servlet, how to check if the browser is Firefox A. Here's a method that does that:

boolean isFirefox(HttpServeletRequest req) { final String agent = req.getHeader("User-Agent"); if (agent == null) return false; return agent.indexOf("Firefox") >= 0; } @Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { boolean result = isFirefox(request); System.out.println("browsing with Firefox=" + result); }