Install Firefox Developer Edition Linux
You are Welcome! The Linked Guide Shows You Step-by-Step How to Install Firefox Developer Edition Browser on Most GNU/Linux Distributions.
And Firefox Developer Edition for Linux contains the newest features and innovations in an unstable environment even before they go to Beta.
Furthermore, the Firefox Developer Version Coexists Perfectly with Other Eventual Firefox Versions on System, this Meaning that Once Fired Up it Will Simply Follow to Load the Existing Default Firefox Environment.
Suggestion: in case to Find it Easily Search with Cmd/Win+f or Ctrl+f and your Distro Name!