''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/783308]'' Earlier versions of Firefox, such as 2.0, would change the color of the URL or website address from white to yellow when it went from an unsecured website (http) to a secured website (https). Although my eyesight has been getting worse, this feature made it very easy to glance at the address & know I was on a secure website & could safely enter sensitive information. I recently upgraded to Firefox 3.6 which does not make such a color change & I find myself straining to see if there's an s on the http or if there's a lock symbol somewhere on the screen. I would greatly appreciate it someone would tell me how to configure Firefox 3.6 to act like 2.0 in this matter.