If you going this route you should also pickup books on javascript and python to get started from. This is a FF help forum not something like a classroom training area.

Wynterlyon said

I am a newbie to coding, and looking to practice coding, i.e., javascript and python. I understand certain browsers can be set up to view and execute code. I am not a developer, and have virtually no knowledge of coding practices. I need all the assistance I can get at this point. Thank you for your time and assistance.

Maybe these searchresults will help .....

Hi Wynterlyon, are you already taking a course? There are a lot of free introductory coding courses. You can sample them from YouTube videos -- the free videos contain promotions for paid courses, but you may not need those at this point.

The instructor is going to have their preferred browser and show you how to use its developer tools features to observe what your page is doing -- usually your code will be running in the context of a page. While most browsers have similar tools, you might find it simplest to use the one in the demonstration.

Note: Among browsers on Windows, the F12 function key is sort of a universal shortcut to open developer tools. Then you can explore how to check for errors in the console or to use a debugger.

My own experience is that I don't remember things I don't use for very long. I generally remember things I had to learn to answer a question or accomplish a particular task / solve a particular problem. But each person learns differently, so if you don't already have an idea for what you want to do with JavaScript or Python that is leading you to need particular tools, maybe watching some programming videos will inspire you.

Good luck!