Mozilla Firefox 48.0.2 RC 1
Windows en-US:
x86: https://download-installer.cdn.mozilla.net/pub/firefox/candidates/48.0.2-candidates/build1/win32/en-US/Firefox%20Setup%2048.0.2.exe
x64: https://download-installer.cdn.mozilla.net/pub/firefox/candidates/48.0.2-candidates/build1/win64/en-US/Firefox%20Setup%2048.0.2.exe
Windows All languages:
https://download-installer.cdn.mozilla.net/pub/firefox/candidates/48.0.2-candidates/build1/win32/
https://download-installer.cdn.mozilla.net/pub/firefox/candidates/48.0.2-candidates/build1/win64/
Other OS:
https://download-installer.cdn.mozilla.net/pub/firefox/candidates/48.0.2-candidates/build1/