diff --git a/scripts/background/background.check.js b/scripts/background/background.check.js
deleted file mode 100644
index c37501d..0000000
--- a/scripts/background/background.check.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import EntryManager from "/scripts/GUI/entrypoints/manager.js"
-
-export default class BackgroundCheck {
-	static init() {
-		new EntryManager();
-	};
-};
\ No newline at end of file
diff --git a/scripts/background/check.js b/scripts/background/check.js
new file mode 100644
index 0000000..e7a9a4c
--- /dev/null
+++ b/scripts/background/check.js
@@ -0,0 +1,117 @@
+/*
+BackgroundCheck
+Check the tabs in the background, and check the filters.
+*/
+
+// Filter importation
+import EntryManager from "/scripts/GUI/entrypoints/manager.js"
+import filters from "../filters.js";
+import {background, global} from "/scripts/secretariat.js";
+
+export default class BackgroundCheck {
+	update = {};
+
+	constructor () {
+		this.manager = new EntryManager();
+		this.updater();
+	};
+
+	updater() {
+		global.read([`settings`,`sync`]).then(async (DURATION_PREFERENCES) => {
+			/*
+			Set the default options if they don't exist yet. 
+			*/
+			const setDefaults = async () => {
+				// Forcibly create the preference if it doesn't exist. It's required! 
+				if (!(typeof DURATION_PREFERENCES).includes(`obj`) || !DURATION_PREFERENCES || Array.isArray(DURATION_PREFERENCES)) {
+					DURATION_PREFERENCES = {};
+					DURATION_PREFERENCES[`duration`] = 24;
+		
+					// Write it. 
+					return(await global.write([`settings`, `sync`], DURATION_PREFERENCES, -1, {"silent": true}));
+				} else {return (true)};
+			};
+
+			setDefaults().then((result) => {
+				if (result) {
+					/*
+					Check if it's time to update the filters through comparing the difference of the current time and the last updated time to the expected duration. 
+					*/
+					async function updater_check() {
+						let TIME = {};
+						TIME[`now`] = Date.now();
+						TIME[`last`] = await global.read([`settings`,`sync`,`last`], -1);
+
+						// Run if the last time is not set or if the difference is greater than the expected duration.
+						return (TIME[`last`] ? ((TIME[`now`] - TIME[`last`]) > DURATION_PREFERENCES[`duration`]) : true);
+					};
+
+					/*
+					Run the update. 
+
+					@return {Promise} the promise that, once resolved, contains the last update status. 
+					*/
+					const updater_run = async () => {
+						filter.update();
+
+						// Update the last time.
+						return(await global.write([`settings`,`sync`,`last`], Date.now(), -1));
+					};
+
+					// Set the interval. 
+					let updater_set = () => {
+						this.update[`checker`] = setInterval(async () => {
+							// Update the filters. 
+							updater_run();
+						}, DURATION_PREFERENCES[`duration`]);
+					};
+					
+					/*
+					Reset the interval. 
+					*/
+					const updater_reset = () => {
+						// Cancel the interval. 
+						(this.update[`checker`]) ? clearInterval(this.update[`checker`]) : false;
+
+						// Run the updater, if necessary. 
+						(updater_check())
+							? updater_run()
+							: false;
+						
+						// Start the new interval. 
+						updater_set();
+					}
+					
+					const updater_background = () => {
+						this.update[`background`] = async () => {
+							if ((await global.read([`settings`, `sync`, `duration`])) ? (await global.read([`settings`, `sync`, `duration`] * (60 ** 2) * 1000 != DURATION_PREFERENCES[`duration`])) : false) {
+								// Get the new time. 
+								DURATION_PREFERENCES[`duration`] = await global.global.read([`settings`, `sync`, `duration`]) * (60 ** 2) * 1000;
+
+								// Reset the updater.
+								updater_reset();								
+							};
+						};
+
+						// Set the background checker. 
+						new background(() => {return(this.update.background())});
+					}
+
+					// Convert DURATION_PREFERENCES[`duration`]) from hrs to milliseconds.
+					DURATION_PREFERENCES[`duration`] = DURATION_PREFERENCES[`duration`] * (60 ** 2) * 1000;
+
+					// Set the filter management. 
+					let filter = new filters();
+					
+					// When the browser is started, run the updater immediately only when the filters are not updated yet.
+					(updater_check())
+						? updater_run()
+						: false;
+
+					// Run the background. 
+					updater_background();
+				}
+			});
+		})
+	}
+};
\ No newline at end of file
diff --git a/scripts/background/fc.js b/scripts/background/fc.js
deleted file mode 100644
index 3d5b89f..0000000
--- a/scripts/background/fc.js
+++ /dev/null
@@ -1,113 +0,0 @@
-/* fc.js
-This script provides installation run scripts.
-*/
-
-import { template, global, background} from "../secretariat.js";
-import filters from "../filters.js";
-import pointer from "../data/pointer.js";
-let config = chrome.runtime.getURL("config/config.json");
-
-export default class fc {
-	// Start the out of the box experience.
-	static hello() {
-		// the OOBE must be in the config.
-		fetch(config)
-			.then((response) => response.json())
-			.then((jsonData) => {
-				let configuration = jsonData[`OOBE`];
-
-				if (configuration) {
-					configuration.forEach((item) => {
-						chrome.tabs.create({ url: item }, function (tab) {});
-					});
-				}
-			})
-			.catch((error) => {
-				console.error(error);
-			});
-	}
-
-	// Initialize the configuration. 
-	static setup() {
-		// the OOBE must be in the config.
-		fetch(config)
-			.then((response) => response.json())
-			.then(async (jsonData) => {
-				let configuration = jsonData;
-				
-				// Run the storage initialization.
-				delete configuration[`OOBE`];
-				template.set(configuration);
-
-				// Update the filters to sync with synchronized storage data. 
-				(new filters).update();
-			})
-			.catch((error) => {
-				console.error(error);
-			});
-	}
-
-	static trigger() {
-		chrome.runtime.onInstalled.addListener(function (details) {
-			(details.reason == chrome.runtime.OnInstalledReason.INSTALL) ? fc.hello() : null;
-			fc.setup();
-		});
-	}
-
-	// main function 
-	static run() {
-		fc.trigger();
-		fc.every();
-
-		// Might as well set the preferences for storage. 
-		template.configure();
-		pointer.clear();
-	}
-
-	static async every() {
-		global.read([`settings`,`sync`]).then(async (DURATION_PREFERENCES) => {
-			// Forcibly create the preference if it doesn't exist. It's required! 
-			if (!(typeof DURATION_PREFERENCES).includes(`obj`) || DURATION_PREFERENCES == null || Array.isArray(DURATION_PREFERENCES)) {
-				DURATION_PREFERENCES = {};
-				DURATION_PREFERENCES[`duration`] = 24;
-	
-				// Write it. 
-				await global.write([`settings`, `sync`], DURATION_PREFERENCES, -1, {"silent": true});
-			};
-	
-			if (((typeof DURATION_PREFERENCES).includes(`obj`) && DURATION_PREFERENCES != null && !Array.isArray(DURATION_PREFERENCES)) ? ((DURATION_PREFERENCES[`duration`]) ? (DURATION_PREFERENCES[`duration`] > 0) : false) : false) {
-				// Convert DURATION_PREFERENCES[`duration`]) from hrs to milliseconds.
-				DURATION_PREFERENCES[`duration`] = DURATION_PREFERENCES[`duration`] * (60 ** 2) * 1000;
-				let filter = new filters;
-	
-				// Now, set the interval. 
-				let updater_set = () => {
-					setInterval(async () => {
-						// Update the filters. 
-						filter.update();
-					}, DURATION_PREFERENCES[`duration`]);
-				};
-	
-				// Provide a way to cancel the interval. 
-				let updater_cancel = (updater) => {
-					clearInterval(updater);
-				};
-
-				let UPDATER = updater_set();
-
-				let updater_interval = async () => {
-					if ((await global.read([`settings`, `sync`, `duration`])) ? (await global.read([`settings`, `sync`, `duration`] * (60 ** 2) * 1000 != DURATION_PREFERENCES[`duration`])) : false) {
-						DURATION_PREFERENCES[`duration`] = await global.global.read([`settings`, `sync`, `duration`]) * (60 ** 2) * 1000;
-
-						// Reset the updater. 
-						updater_cancel(UPDATER);
-						UPDATER = updater_set();
-					}
-				};
-
-				new background(updater_cancel);
-			};
-		})
-
-	};
-}
diff --git a/scripts/background/importer.js b/scripts/background/importer.js
new file mode 100644
index 0000000..b372509
--- /dev/null
+++ b/scripts/background/importer.js
@@ -0,0 +1,68 @@
+/* 
+BackgroundImporter
+This script provides installation run scripts.
+*/
+
+// File importation
+import {template, global} from "../secretariat.js";
+import pointer from "../data/pointer.js";
+
+// The URL for the configuration file
+const config = chrome.runtime.getURL("config/config.json");
+
+export default class BackgroundImporter {
+	// Start the out of the box experience.
+	async hello() {
+		if (!(await global.read([`init`])) || !(await global.read([`settings`,`analysis`,`api`,`key`]))) {
+			let SOURCE = fetch(config); 
+			let SITES = [`popup/hello.htm`];
+	
+			if (SOURCE.ok) {
+				try {
+					let CONFIGURATION = await SOURCE.json();
+					if (CONFIGURATION[`OOBE`]) {
+						SITES = [...SITES, ...(Array.isArray(CONFIGURATION[`OOBE`]) ? CONFIGURATION[`OOBE`] : [CONFIGURATION[`OOBE`]])];
+					};
+				} catch(err) {}
+			};
+			
+			SITES.forEach((item) => {
+				// Get local URL. 
+				chrome.tabs.create({ url: chrome.runtime.getURL('pages/'.concat(item)) }, function (tab) {});
+			});
+		};
+	};
+
+	// Initialize the configuration. 
+	setup() {
+		// the OOBE must be in the config.
+		fetch(config)
+			.then((response) => response.json())
+			.then(async (jsonData) => {
+				let configuration = jsonData;
+				
+				// Run the storage initialization.
+				delete configuration[`OOBE`];
+				template.set(configuration);
+			})
+			.catch((error) => {
+				console.error(error);
+			});
+	}
+
+	trigger() {
+		chrome.runtime.onInstalled.addListener((details) => {
+			(details.reason == chrome.runtime.OnInstalledReason.INSTALL) ? this.hello() : null;
+			this.setup();
+		});
+	}
+
+	// main function 
+	constructor () {
+		this.trigger();
+
+		// Might as well set the preferences for storage. 
+		template.configure();
+		pointer.clear();
+	}
+}