{"json_modified": "2016-09-19T14:07:08.266716", "uuid": "87e120ba-aa1f-487c-92e0-6e96da86919c", "title": "Debugging (before Firefox 50)", "url": "/en-US/docs/Mozilla/Add-ons/WebExtensions/Debugging_(before_Firefox_50)", "tags": [], "translations": [], "modified": "2016-09-19T14:07:08", "label": "Debugging (before Firefox 50)", "localization_tags": [], "locale": "en-US", "id": 195569, "last_edit": "2016-09-19T14:07:02", "summary": "This article explains how you can use the built-in Firefox developer tools to debug WebExtensions. If you're trying to debug an add-on developed with the Add-on SDK, please see the guide to the <a href=\"/en-US/docs/Mozilla/Add-ons/Add-on_Debugger\">Add-on Debugger</a>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "A_simple_example_notify-link-clicks-i18n", "title": "A simple example: notify-link-clicks-i18n"}, {"id": "The_Browser_Toolbox", "title": "The Browser Toolbox"}, {"id": "Prerequisites", "title": "Prerequisites"}, {"id": "Opening_the_Browser_Toolbox", "title": "Opening the Browser Toolbox"}, {"id": "Viewing_log_output", "title": "Viewing log output"}, {"id": "Debugging_JavaScript", "title": "Debugging JavaScript"}, {"id": "JavaScript_command_line_interpreter", "title": "JavaScript command line interpreter"}, {"id": "Debugging_content_scripts", "title": "Debugging content scripts"}, {"id": "Debugging_popups", "title": "Debugging popups"}, {"id": "Disable_autohide", "title": "Disable autohide"}, {"id": "Open_the_popup", "title": "Open the popup"}, {"id": "Select_the_popup's_frame", "title": "Select the popup's frame"}, {"id": "What_about_the_Add-on_Debugger", "title": "What about the Add-on Debugger?"}], "slug": "Mozilla/Add-ons/WebExtensions/Debugging_(before_Firefox_50)", "review_tags": []}