MathML
- RECSpecial tags that allow mathematical formulas and notations to be written on web pages.
Chrome
- 4 - 23: Not supported (but has polyfill available)
- 24: Supported
- 25 - 96: Not supported (but has polyfill available)
- 97 - 108: Disabled by default
- 109 - 122: Supported
- 123: Supported
- 124 - 126: Supported
Edge
- 12 - 18: Not supported
- 79 - 96: Not supported (but has polyfill available)
- 97 - 108: Disabled by default
- 109 - 122: Supported
- 123: Supported
Safari
- 3.1 - 9.1: Partial support
- 10 - 17.3: Supported
- 17.4: Supported
- TP: Supported
Firefox
- 2 - 3.6: Supported
- 4 - 123: Supported
- 124: Supported
- 125 - 127: Supported
Opera
- 9: Not supported
- 9.5 - 12.1: Partial support
- 15 - 82: Not supported (but has polyfill available)
- 83 - 94: Disabled by default
- 95 - 107: Supported
- 108: Supported
IE
- 5.5: Not supported
- 6 - 8: Not supported (but has polyfill available)
- 9 - 10: Not supported
- 11: Not supported
Chrome for Android
- 122: Supported
Safari on iOS
- 3.2 - 4.3: Not supported (but has polyfill available)
- 5 - 17.3: Supported
- 17.4: Supported
Samsung Internet
- 4 - 20: Not supported (but has polyfill available)
- 21 - 22: Supported
- 23: Supported
Opera Mini
- all: Not supported (but has polyfill available)
Opera Mobile
- 10 - 12.1: Not supported (but has polyfill available)
- 80: Supported
UC Browser for Android
- 15.5: Not supported (but has polyfill available)
Android Browser
- 2.1 - 4.4.4: Not supported (but has polyfill available)
- 122: Supported
Firefox for Android
- 123: Supported
QQ Browser
- 14.9: Not supported (but has polyfill available)
Baidu Browser
- 13.52: Not supported (but has polyfill available)
KaiOS Browser
- 2.5: Supported
- 3: Supported
Support was added in Chrome 24, but temporarily removed afterwards due to instability.