diff --git a/src/main/GM/index.ts b/src/main/GM/index.ts
index f3b4e37..42c486b 100644
--- a/src/main/GM/index.ts
+++ b/src/main/GM/index.ts
@@ -1,11 +1,9 @@
+import { msToday } from "../../utils/msToday";
 import { messageToIsolated } from "./messageToIsolated";
 
 /** 拓展高级 API 组件 */
 export namespace GM {
 
-    /** 临时网络规则唯一id */
-    let uuid = 1;
-
     /** 更新临时网络拦截规则 */
     export function updateSessionRules(rules: chrome.declarativeNetRequest.Rule[], tab = true) {
         return new Promise((resolve: (value: void) => void, reject) => {
@@ -26,7 +24,7 @@ export namespace GM {
         requestHeaders: chrome.declarativeNetRequest.ModifyHeaderInfo[] = [],
         responseHeaders: chrome.declarativeNetRequest.ModifyHeaderInfo[] = [],
     ) {
-        const id = uuid++;
+        const id = msToday();
         if (requestHeaders.length || responseHeaders.length) {
             await updateSessionRules([
                 {
@@ -37,24 +35,7 @@ export namespace GM {
                         responseHeaders,
                     },
                     condition: {
-                        urlFilter: input instanceof Request ? input.url : input instanceof URL ? input.toJSON() : input,
-                        resourceTypes: <any>[
-                            'main_frame',
-                            'sub_frame',
-                            'stylesheet',
-                            'script',
-                            'image',
-                            'font',
-                            'object',
-                            'xmlhttprequest',
-                            'ping',
-                            'csp_report',
-                            'media',
-                            'websocket',
-                            'webtransport',
-                            'webbundle',
-                            'other',
-                        ]
+                        urlFilter: input instanceof Request ? input.url : input instanceof URL ? input.toJSON() : input
                     }
                 }
             ]);
diff --git a/src/main/IDM/index.ts b/src/main/IDM/index.ts
new file mode 100644
index 0000000..382cda2
--- /dev/null
+++ b/src/main/IDM/index.ts
@@ -0,0 +1,202 @@
+import { toastr } from "../../toastr";
+import { msToday } from "../../utils/msToday";
+import { GM } from "../GM";
+
+/** IDM 工具集 */
+export namespace IDM {
+
+    /** 消息序号 */
+    let i = 0;
+
+    /** 浏览器窗口序号 */
+    let wid = 1;
+
+    /** IDM 链接实例 */
+    let ws: WebSocket | undefined;
+
+    let cid: number | undefined;
+
+    const Ra = false;
+
+    const ha = Function.apply.bind(String.fromCharCode, null);
+
+    const lb = { ftp: 2, ftps: 10, http: 1, https: 9, idmreg: 12, xup: 33 };
+
+    /**
+     * 构造并发送消息
+     *
+     * @param type 消息类型
+     * @param sort 二级消息类型？
+     * @param flag 未知
+     * @param ext 消息附加信息？
+     * @param obj 消息内容
+     * @param tag 未知
+     */
+    function MSG(type: number, sort: number, flag: number, ext: (string | number | null)[], obj?: Record<number, any>, tag?: boolean) {
+        const arr: any[] = ["MSG#", ++i, "#", type, "#", sort, "#", flag];
+        if (ext) {
+            for (let i = 0; i < ext.length; i++)
+                arr.push(":", ext[i] || 0);
+        }
+        if (obj) {
+            for (let key in obj) {
+                const value = obj[key];
+                if (null != value) {
+                    arr.push(",", key, "=");
+                    if (value instanceof Array) {
+                        let length = arr.length;
+                        let b = 0;
+                        for (var char of value) {
+                            b = char instanceof Uint8Array ? b + (tag ? ob(char = <any>ha(<any>char)) : char.length) : b + ob(char = char.toString());
+                            arr.push(char);
+                        }
+                        arr.splice(length, 0, b, ":");
+                    } else {
+                        "string" == typeof value ? arr.push(ob(value), ":", value) : value instanceof Blob ? arr.push(value.size, ":", value) : arr.push(value);
+                    }
+                }
+            }
+        }
+        arr.push(";")
+        ws?.send(new Blob(arr));
+    }
+
+    function ob(a: string) {
+        for (var b = a.length, c = b, d = 0; d < c;) {
+            var e = a.charCodeAt(d++);
+            128 <= e && (2048 <= e ? (b += 2,
+                e - 55296 & 56320 || d++) : b++)
+        }
+        return b
+    }
+
+    /**
+     * 连接到 IDM
+     * 
+     * @param callback 连接后回调
+     */
+    function connect(callback?: () => void) {
+        cid || (cid = msToday());
+        GM.updateSessionRules([{
+            id: cid,
+            action: {
+                type: <any>'modifyHeaders',
+                requestHeaders: [
+                    {
+                        header: 'origin',
+                        operation: <any>'set',
+                        value: 'chrome-extension://ngpampappnmepgilojfohadhhmbhlaek'
+                    }
+                ]
+            },
+            condition: {
+                urlFilter: '||127.0.0.1:1001',
+            }
+        }])
+            .then(() => {
+                ws = new WebSocket(`ws://127.0.0.1:1001/?cid=1&rnd=${Math.random().toString().substring(2, 11)}`, 'plugin.v3.internetdownloadmanager.com');
+                ws.addEventListener('open', () => {
+                    init();
+                    windowUpdate();
+                    windowShow();
+                    callback && setTimeout(() => callback?.());
+                });
+                ws.addEventListener('error', e => {
+                    toastr.error('连接 IDM 出错', <any>e);
+                    console.error(e);
+                    ws = undefined;
+                });
+                ws.addEventListener('close', e => {
+                    toastr.warn('IDM 连接已关闭')
+                    console.warn('IDM 连接已关闭', e);
+                });
+                ws.addEventListener('message', async ({ data }) => {
+                    if (data instanceof Blob) {
+                        data = await data.text();
+                    }
+                    console.log('[IDM]', data);
+                });
+            })
+            .catch(e => {
+                toastr.error('连接 IDM 出错', <any>e);
+                console.error(e);
+                ws = undefined;
+            })
+    }
+
+    /** open 回执（模拟） */
+    function init() {
+        const e = navigator.userAgent;
+        const la = e.match(/\bChrome\/(\d+)\.(\d+)\.(\d+)\.(\d+)\b/) ? e.match(/\bChrome\/(\d+)\.(\d+)\.(\d+)\.(\d+)\b/)![0] : "UNKNOWN/0.0";
+        const b = [16, 48, Ra ? 1028 : 1031, 0];
+        const c = {
+            112: la,
+            113: la,
+            114: "Chrome_RenderWidgetHostHWND", // "MozillaWindowClass" | "Windows.UI.Core.CoreWindow"
+            125: undefined,
+            116: "zh-CN"
+        }
+        MSG(2, 1, Ra ? 0 : 1024, b, c);
+    }
+
+    /** 浏览器窗口刷新消息（模拟） */
+    function windowUpdate() {
+        const info = [wid, null, window.screen.availWidth, window.screen.availHeight, -8, -8, 1];
+        MSG(6, 2, 2312, info);
+    }
+
+    /** 浏览器窗口获得焦点（模拟） */
+    function windowShow() {
+        const info = [wid, 8, 111, window.screen.availWidth, window.screen.availHeight];
+        MSG(7, 2, 256, info);
+    }
+
+    /** 浏览器窗口关闭（模拟） */
+    function windowClose() {
+        MSG(5, 1, 32, [wid]);
+        wid++;
+    }
+
+    function Yb(a: string) {
+        a = a.split(":", 1).shift()!.toLowerCase();
+        const n = lb[<'ftp'>a] || 0;
+        return n % 8;
+    }
+
+    /** 下载 */
+    export function download(data: IDMDownloadData) {
+        if (ws) {
+            const { url, referer, origin, userAgent, fileName } = data;
+            const x = Yb(url);
+            if (!x) throw new ReferenceError(`IDM 不支持的下载链接！`);
+            const k = <Record<number, string | number>>{
+                6: url,
+                7: origin ? location.origin : referer,
+                8: 4,
+                50: referer === undefined ? location.origin : referer,
+                51: '',
+                54: userAgent || navigator.userAgent,
+                121: '4',
+            };
+            fileName && (k[100] = fileName);
+            MSG(14, 1, 0, [x], k);
+        } else {
+            connect(() => {
+                download(data);
+            })
+        }
+    }
+
+    interface IDMDownloadData {
+        /** 下载链接 */
+        url: string;
+        /** 请求头 referer 要移除请传递空字符串 */
+        referer?: string;
+        /** 请求头 origin 要移除请传递空字符串 */
+        origin?: string;
+        /** 请求头 user-agent 默认使用当前环境 */
+        userAgent?: string;
+        /** 文件名（含拓展名） 保持默认可以不提供 */
+        fileName?: string;
+    }
+}
\ No newline at end of file
diff --git a/src/sw/SessionRules.ts b/src/sw/SessionRules.ts
index 05e25eb..909cf3f 100644
--- a/src/sw/SessionRules.ts
+++ b/src/sw/SessionRules.ts
@@ -6,9 +6,9 @@
  */
 export function updateSessionRules(tabId: number, rules: chrome.declarativeNetRequest.Rule[], tab = true) {
     // 有规则添加规则
-    tab && rules.forEach(d => {
-        // 为每条规则限定标签ID
-        d.condition.tabIds = [tabId];
+    rules.forEach(d => {
+        tab && (d.condition.tabIds = [tabId]); // 为每条规则限定标签ID
+        d.condition.resourceTypes = Object.values(chrome.declarativeNetRequest.ResourceType);
     });
     return chrome.declarativeNetRequest.updateSessionRules({ addRules: rules });
 }
\ No newline at end of file
diff --git a/src/sw/index.ts b/src/sw/index.ts
index db81672..90494c1 100644
--- a/src/sw/index.ts
+++ b/src/sw/index.ts
@@ -13,7 +13,7 @@ chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
             }
             case 'removeSessionRules': {
                 chrome.declarativeNetRequest.updateSessionRules({
-                    removeRuleIds: message.data
+                    removeRuleIds: message.data,
                 })
                 break;
             }
diff --git a/src/utils/msToday.ts b/src/utils/msToday.ts
new file mode 100644
index 0000000..88db0e9
--- /dev/null
+++ b/src/utils/msToday.ts
@@ -0,0 +1,12 @@
+/**
+ * 今天过了多少毫秒？  
+ * 可作为全局唯一 int32 范围内的整数主键使用
+ */
+export function msToday() {
+    const td = new Date();
+    td.setHours(0);
+    td.setMinutes(0);
+    td.setSeconds(0);
+    td.setMilliseconds(0);
+    return Date.now() - td.getTime();
+}
\ No newline at end of file