{"json_modified": "2016-08-05T03:13:57.536680", "uuid": "423c3312-4940-430e-966c-3ae7a6afff8c", "title": "runtime.OnInstalledReason", "url": "/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/OnInstalledReason", "tags": ["runtime", "API", "Type", "Reference", "Non-standard", "Extensions", "Add-ons", "WebExtensions", "OnInstalledReason", "add-ons"], "translations": [], "modified": "2016-08-05T03:13:57", "label": "runtime.OnInstalledReason", "localization_tags": [], "locale": "en-US", "id": 172141, "last_edit": "2016-08-05T03:13:54", "summary": "The reason that the <a href=\"/en-US/docs/Mozilla/Add-ons/WebExtensions/API/Runtime/onInstalled\" title=\"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.\"><code>runtime.onInstalled</code></a> event is being dispatched.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Type", "title": "Type"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}], "slug": "Mozilla/Add-ons/WebExtensions/API/runtime/OnInstalledReason", "review_tags": []}