How to Enable Dark Theme in Firefox Web Browser?
Step 1: First, Update your Firefox Web Browser
Step 2: Click on 'Three Bars' at the top right, and then click on 'Help'.
Step 3: Click on 'About Firefox', and then update it.
Step 4: After updating, again click on 'Three Bars' at the top right, and then click on 'customize'.
Step 5: At the Bottom Menu, Click on 'Themes', and then click on 'Dark'.
Step 6: Close the Firefox Web browser, and start again.
It's done.
Thanks for watching, please like and subscribe
==============================================
https://www.facebook.com/HowtoTutorialsByAmit/