| None | Limited | Full | Extended |
|---|---|---|---|
| Not supported at all | Either changing tabs or minimizing does not work | Minimizing and changing tabs both work | Ideal case. Page visibility can detect if page is in the foreground and background |
| OS | Internet Explorer | Chrome | Firefox | Safari | Windows | Full | Full | Full | Untested | Mac | NA | Limited(Only tabs) | Full | Extended | iPhone | NA | Limited(Only tabs) | NA | Full | Android | NA | Full* | Full* | Untested |
|---|