$ 0 0 Mozilla Firefox 49.0 RC4 en-US x86: http://download-installer.cdn.mozilla.net/pub/firefox/candidates/49.0-candidates/build4/win32/en-US/Firefox Setup 49.0.exe x64: http://download-installer.cdn.mozilla.net/pub/firefox/candidates/49.0-candidates/build4/win64/en-US/Firefox Setup 49.0.exe All languages:http://download-installer.cdn.mozilla.net/pub/firefox/candidates/49.0-candidates/build4/win32/http://download-installer.cdn.mozilla.net/pub/firefox/candidates/49.0-candidates/build4/win64/