The Jmol applet requires a web browser that supports Java applets.
In addition, most web pages using the Jmol applet include HTML controls (buttons, checkboxes, etc.) that send scripts to control the Jmol applet. In order for these controls to function properly the web browser must also support JavaScript and LiveConnect communications between JavaScript and Java applets.
| Operating System | |
| Web browser | |
| Browser version | |
| navigator.userAgent | |
| has getElementById() | |
| navigator.javaEnabled() |