Internet browser compatibility guidelines
| Browser | TLS 1.2 Compatibility Notes |
|---|---|
| Microsoft Edge | Compatible by default |
| Desktop and mobile versions | Compatible by default |
| Microsoft Internet Explorer (IE) | |
| Desktop and mobile IE version 11 | Compatible by default |
| Desktop IE versions 9 and 10 | Capable when run in Windows 7 or newer, but not by default. Windows Vista and older operating systems, such as Windows XP, are not compatible with TLS 1.2 encryption. |
| Desktop IE versions 8 and below | Not compatible or stable with TLS 1.2 encryption. |
| Mozilla Firefox | Compatible with the most recent, stable version, regardless of operating system |
| Firefox 27 and higher | Compatible by default |
| Firefox 23 to 26 | Capable, but not by default. |
| Firefox 22 and below | Not compatible with TLS 1.2 or higher encryption. |
| Google Chrome | Compatible with the most recent, stable version, regardless of operating system |
| Google Chrome 38 and higher | Compatible by default |
| Google Chrome 22 to 37 | Capable when run in Windows XP SP3, Vista, or newer (desktop), OS X 10.6 (Snow Leopard) or newer (desktop), or Android 2.3 (Gingerbread) or newer (mobile) |
| Google Chrome 21 and below | Not compatible with TLS 1.2 encryption. |
| Google Android OS Browser | |
| Android 6.0 (Marshmellow) and higher | Compatible by default |
| Android 5.0 (Lollipop) and higher | Compatible by default |
| Android 4.4 (KitKat) to 4.4.4 | Capable, but not by default. |
| Android 4.3 (Jelly Bean) and below | Not compatible with TLS 1.2 encryption. |
| Apple Safari | |
| Desktop Safari versions 7 and higher for OS X 10.9 (Mavericks) and higher | Compatible by default |
| Desktop Safari versions 6 and below for OS X 10.8 (Mountain Lion) and below | Not compatible with TLS 1.2 encryption. |
| Mobile Safari versions 5 and higher for iOS 5 and higher | Compatible by default |
| Mobile Safari for iOS 4 and below | Not compatible with TLS 1.2 encryption. |