{"json_modified": "2016-03-28T07:59:35.320666", "uuid": "2a6494b7-086d-411d-8eb7-85ce84be1dd2", "title": "Updating extensions for Firefox 4", "url": "/en-US/docs/Extensions/Updating_extensions_for_Firefox_4", "tags": ["Extensions", "Gecko 2.0", "Add-ons", "Firefox 4"], "translations": [], "modified": "2014-03-25T23:32:51", "label": "Updating extensions for Firefox 4", "localization_tags": [], "locale": "en-US", "id": 5447, "last_edit": "2011-11-05T22:57:06", "summary": "This article offers details on changes in Firefox 4 that may impact existing extensions.", "sections": [{"id": "User_interface_changes", "title": "User interface changes"}, {"id": "The_status_bar", "title": "The status bar"}, {"id": "Toolbars", "title": "Toolbars"}, {"id": "Creating_toolbars", "title": "Creating toolbars"}, {"id": "The_Firefox_application_menu", "title": "The Firefox application menu"}, {"id": "Tabs", "title": "Tabs"}, {"id": "XPCOM_changes", "title": "XPCOM\u00a0changes"}, {"id": "The_Add-on_Manager", "title": "The Add-on Manager"}, {"id": "Threading", "title": "Threading"}, {"id": "Network_redirects", "title": "Network redirects"}, {"id": "XPI_unpacking", "title": "XPI unpacking"}, {"id": "Child_HWNDs_have_been_removed", "title": "Child HWNDs have been removed"}, {"id": "Development_and_testing_tips", "title": "Development and testing tips"}, {"id": "Caching", "title": "Caching"}, {"id": "The_Profile_Manager", "title": "The Profile Manager"}, {"id": "Installing_extensions_globally", "title": "Installing extensions globally"}, {"id": "See_also", "title": "See also"}], "slug": "Extensions/Updating_extensions_for_Firefox_4", "review_tags": []}