This was already a thing for ages until they killed it, but it is still possible if you are okay with tweaking userChrome.css
Why Mozilla wastes resources on their own implementation instead of providing API’s to third party developers is beyond me.
Your first link is based on XUL, which was deprecated because it was wasting resources being unmaintainable and insecure.
Here’s a great article about that
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word “Linux” in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
9.4K
Monthly active users
3.2K
Posts
37K
Comments
