Unstable
Access to information about Firefox's runtime environment. All properties exposed are read-only.
For more information, see nsIXULRuntime.
Globals
Properties
inSafeMode
This value is true if Firefox was started in safe mode, otherwise false.
OS
A string identifying the current operating system. For example, . "WINNT", "Darwin", or "Linux". See OS_TARGET for a more complete list of possible values.
processType
The type of the caller's process, which will be one of these constants:
| Constant | Value | Description |
|---|---|---|
| PROCESS_TYPE_DEFAULT | 0 | The default (chrome) process. |
| PROCESS_TYPE_PLUGIN | 1 | A plugin subprocess. |
| PROCESS_TYPE_CONTENT | 2 | A content subprocess. |
| PROCESS_TYPE_IPDLUNITTEST | 3 | An IPDL unit testing subprocess. |
widgetToolkit
A string identifying the target widget toolkit in use.
XPCOMABI
A string identifying the ABI of the current processor and compiler vtable. This string takes the form <processor>-<compilerABI>, for example: "x86-msvc" or "ppc-gcc3".