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[
{
"namespace": "aboutConfigPrefs",
"description": "experimental API extension to allow access to about:config preferences",
"events": [
{
"name": "onPrefChange",
"type": "function",
"parameters": [
{
"name": "name",
"type": "string",
"description": "The preference which changed"
}
],
"extraParameters": [
{
"name": "name",
"type": "string",
"description": "The preference to monitor"
}
]
}
],
"functions": [
{
"name": "getBranch",
"type": "function",
"description": "Get all child prefs for a branch",
"parameters": [
{
"name": "branchName",
"type": "string",
"description": "The branch name"
}
],
"async": true
},
{
"name": "getPref",
"type": "function",
"description": "Get a preference's value",
"parameters": [
{
"name": "name",
"type": "string",
"description": "The preference name"
}
],
"async": true
},
{
"name": "getBoolPrefSync",
"type": "function",
"description": "Get a webcompat preference's boolean value synchronously",
"parameters": [
{
"name": "name",
"type": "string",
"description": "The preference name"
},
{
"name": "defaultValue",
"type": "boolean",
"optional": true,
"description": "Default value to return if the pref is not set (defaults to false if omitted)"
}
],
"returns": {
"type": "boolean",
"description": "returns the value of a boolean pref."
}
},
{
"name": "setPref",
"type": "function",
"description": "Set a preference's value",
"parameters": [
{
"name": "name",
"type": "string",
"description": "The preference name"
},
{
"name": "value",
"type": "boolean",
"description": "The new value"
}
],
"async": true
}
]
}
]