Go to the Apple Apps Store to install the current version of
XCodeif you do not have it installed.
Step 2 :
Install Homebrew if you do not have it installed.
sudo ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
To test the install if it is success or not :
Step 3 :
Install git if you do not have it installed.
brew install git
Step 4 :
sudo git clone https://github.com/pansen/macos-sandbox-profiles.git
Step 5 :
sudo mv firefox-bin firefox-bin.real
sudo ln -sf /Users/Shared/macos-sandbox-profiles/bin/firefox-bin .
Step 6 :
Quit the Firefox if it is still running (not just close the browser) and then restart it.
That's all! See you.