{"json_modified": "2016-10-17T20:57:42.375011", "uuid": "2fdabc92-9000-42a7-978f-2138eb56ace6", "title": "runtime.onInstalled", "url": "/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onInstalled", "tags": ["runtime", "API", "onInstalled", "Reference", "Event", "Non-standard", "Extensions", "Add-ons", "WebExtensions", "Non-Standard", "add-ons"], "translations": [], "modified": "2016-10-17T20:57:42", "label": "runtime.onInstalled", "localization_tags": [], "locale": "en-US", "id": 172139, "last_edit": "2016-09-17T11:49:06", "summary": "Fired when the add-on is first installed, when the add-on is updated to a new version, and when the browser is updated to a new version.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "addListener_syntax", "title": "addListener syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Additional_objects", "title": "Additional objects"}, {"id": "details", "title": "details"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "Examples", "title": "Examples"}], "slug": "Mozilla/Add-ons/WebExtensions/API/runtime/onInstalled", "review_tags": []}