Step 5. You will now see a list of themes available for Firefox. Choose the one you want and click on the ‘Enable’ button.
The new theme will now be applied to the browser. The colours will change, the UI will reflect these changes, and you can change these themes as many times as you want. The developers keep adding new themes from time to time and there are some which are available for a limited time only. So, keep a lookout for the same and enjoy customizing the browser to your liking.
