Learn how to enable or disable JavaScript In Edge, Chrome, Firefox and Opera browser on your Windows 11/10 computer. Browsing speed will improve, but you will lose out on functionalities.

If you want to disable JavaScript from running in Mozilla Firefox, then you need to change this hidden setting. JavaScript can be a security risk!

Finally, Firefox 23 removes the option to disable JavaScript from the Options pane -- and if you had JavaScript turned off, it has been turned back on.

After we ran the SunSpider JavaScript benchmark on Firefox 3b5 last week, I got an e-mail from Mike Schroepfer from Mozilla: A few folks noticed your article on Firefox 3 Beta 5. Your numbers don ...