- Version 50 or later on Windows 7 or later and Mac OS X 10.9 (Snow Leopard) or later
- On Windows 10 or later
- Version 47 or later on Windows 7 or later and Mac OS X 10.7 or later
- Supported on stable, official release builds from Mozilla. Non-Mozilla builds are not supported.
- On Mac OS X 10.10 (Yosemite) or later
- Supported on all 2012 or later models and select 2011 models