''locking this thread as duplicate, please continue at [https://support.mozilla.org/questions/1169229 /questions/1169229]'' I posted this question earlier but I can't find where it goes. so I'm posting it again. The thing is I recently created a website & it almost load within 2 seconds in chrome browser. I did all the hard work by optimizing images, leverage browser cache, etc. but still Firefox takes more than 3 seconds to load the site & I need to know why it takes that much time to load my site. Please help me if you have any tips. My website is https://www.candyselfie.net Regards, Pamela