I can not install Firefox OS Simulator in Firefox (60.0.2 (64-bit) Mozilla Firefox for Linux Mint-1.0).
I am trying to install Firefox OS Simulator in Firefox WebIDE. I have Linux Mint 18 Sarah, MATE 64-bit.
sorry about my English.....
I found the solution for my Problem.... Firefox OS simulator is not more supported . But there is gut Information ..., there isToggling Responsive Design Mode , it work similar as Firefox OS simulator .You can open it above in Toolbar on Tools + Web Development + Responsive Design Mode and it very easy to working..... Und it use less resources as Mobile Browser Emulator from Chrome....
A Screenshot how to see it on a "Google Nexus 5".... Screenshot from "Google Nexus 5"