If you recently switched to Firefox from another browser, you might not be aware of all the available about: config settings that you can change or add to customize Firefox. Since I recently got a new computer and had to install Firefox, I decided to take another look at the the config settings and review which ones I apply the most. What follows then is my personal favorite config changes and why I implement them.
To access the config screen, open Firefox and type in about:config for the url and enter. You will be greeted with a long list of settings and their values. Some of these settings might not appear on the list, so you will have to add them.