How to run Firefox open developer tools?

For the convenience of the task, first create a copy of the application shortcut on the desktop and give it a suitable name. For example: After that open the properties of the shortcut. To do this, right-click on it and select Properties . In the Label tab and the Object fields at the end, add a space and the key.

It should look like the screenshot. Then press the Apply and Ok buttons. After the steps taken, launch the browser using this shortcut. After launching, the developer tools will open automatically.irefox.exe — DevTools

— devtools