Erudition

// Fetch first extension matching the name if any

let sidebery_policy = WebExtensionPolicy.getActiveExtensions().filter((ext) => ext.name == "Sidebery")[0]
let sidebery_browser;
let init_sidebery_browser;

if (sidebery_policy) {
	let sidebery_extension = sidebery_policy.extension;
	let sidebery_uri = sidebery_extension.manifest.sidebar_action.default_panel;