Firefox Edge is a theme for Mozilla Firefox that replicates the look of Microsoft Edge browser (both light & dark themes), without losing any features of Firefox.
Choose either “Light” or “Dark” from the Theme drop-down box, and click Install with Stylish.
Here is Firefox’s default UI.
After installing the skin and restarting Firefox, here is how it looks.
And here is how the dark theme looks like.
To install the skin manually, you need to create the Stylesheet file userChrome.css in your Firefox profile folder. More information available at Firefox-Edge GitHub page.
The theme is applied only to the top level visuals — which means the context menu, popup and settings pages etc will keep their default look.
Src: Sapierens on Reddit
About the author
Ramesh Srinivasan founded Winhelponline.com back in 2005. He is passionate about Microsoft technologies and has a vast experience in Windows — delivering support for Microsoft's consumer products. He has been a Microsoft MVP (2003-2012) who contributes to various Windows support forums.