diff --git a/frontend/src/@types/socket.d.ts b/frontend/src/@modules/socketio/socket.d.ts
similarity index 97%
rename from frontend/src/@types/socket.d.ts
rename to frontend/src/@modules/socketio/socket.d.ts
index 10224bde3..77a1179cd 100644
--- a/frontend/src/@types/socket.d.ts
+++ b/frontend/src/@modules/socketio/socket.d.ts
@@ -57,6 +57,6 @@ declare namespace SocketIO {
   };
 
   namespace CustomEvent {
-    type Progress = Server.Progress;
+    type Progress = Site.Progress;
   }
 }
diff --git a/frontend/src/@modules/task/hooks.ts b/frontend/src/@modules/task/hooks.ts
new file mode 100644
index 000000000..14fea2288
--- /dev/null
+++ b/frontend/src/@modules/task/hooks.ts
@@ -0,0 +1,13 @@
+import BGT from "./";
+
+export function useIsAnyTaskRunning() {
+  return BGT.isRunning();
+}
+
+export function useIsGroupTaskRunning(groupName: string) {
+  return BGT.has(groupName);
+}
+
+export function useIsIdRunning(groupName: string, id: number) {
+  return BGT.find(groupName, id);
+}
diff --git a/frontend/src/@modules/task/index.ts b/frontend/src/@modules/task/index.ts
new file mode 100644
index 000000000..3df9c627d
--- /dev/null
+++ b/frontend/src/@modules/task/index.ts
@@ -0,0 +1,62 @@
+import { keys } from "lodash";
+import { siteAddProgress, siteRemoveProgress } from "../../@redux/actions";
+import store from "../../@redux/store";
+
+// A background task manager, use for dispatching task one by one
+class BackgroundTask {
+  private groups: Task.Group;
+  constructor() {
+    this.groups = {};
+  }
+
+  dispatch<T extends Task.Callable>(groupName: string, tasks: Task.Task<T>[]) {
+    if (groupName in this.groups) {
+      return false;
+    }
+
+    this.groups[groupName] = tasks;
+    setTimeout(async () => {
+      const dispatch = store.dispatch;
+
+      for (let index = 0; index < tasks.length; index++) {
+        const task = tasks[index];
+
+        dispatch(
+          siteAddProgress([
+            {
+              id: groupName,
+              header: groupName,
+              name: task.name,
+              value: index,
+              count: tasks.length,
+            },
+          ])
+        );
+        try {
+          await task.callable(...task.parameters);
+        } catch (error) {}
+      }
+      delete this.groups[groupName];
+      dispatch(siteRemoveProgress([groupName]));
+    });
+
+    return true;
+  }
+
+  find(groupName: string, id: number) {
+    if (groupName in this.groups) {
+      return this.groups[groupName].find((v) => v.id === id) !== undefined;
+    }
+    return false;
+  }
+
+  has(groupName: string) {
+    return groupName in this.groups;
+  }
+
+  isRunning() {
+    return keys(this.groups).length > 0;
+  }
+}
+
+export default new BackgroundTask();
diff --git a/frontend/src/@modules/task/task.d.ts b/frontend/src/@modules/task/task.d.ts
new file mode 100644
index 000000000..a04061915
--- /dev/null
+++ b/frontend/src/@modules/task/task.d.ts
@@ -0,0 +1,14 @@
+declare namespace Task {
+  type Callable = (...args: any[]) => Promise<void>;
+
+  interface Task<FN extends Callable> {
+    name: string;
+    id?: number;
+    callable: FN;
+    parameters: Parameters<FN>;
+  }
+
+  type Group = {
+    [category: string]: Task.Task<Callable>[];
+  };
+}
diff --git a/frontend/src/@modules/task/utilites.ts b/frontend/src/@modules/task/utilites.ts
new file mode 100644
index 000000000..2898467c2
--- /dev/null
+++ b/frontend/src/@modules/task/utilites.ts
@@ -0,0 +1,13 @@
+export function createTask<T extends Task.Callable>(
+  name: string,
+  id: number | undefined,
+  callable: T,
+  ...parameters: Parameters<T>
+): Task.Task<T> {
+  return {
+    name,
+    id,
+    callable,
+    parameters,
+  };
+}
diff --git a/frontend/src/@redux/actions/site.ts b/frontend/src/@redux/actions/site.ts
index 89f89c0c7..ff2303ed0 100644
--- a/frontend/src/@redux/actions/site.ts
+++ b/frontend/src/@redux/actions/site.ts
@@ -28,7 +28,7 @@ export const siteRemoveNotifications = createAction<string>(
 );
 
 export const siteAddProgress =
-  createAction<Server.Progress[]>("site/progress/add");
+  createAction<Site.Progress[]>("site/progress/add");
 
 export const siteRemoveProgress = createAsyncThunk(
   "site/progress/remove",
diff --git a/frontend/src/@redux/reducers/site.ts b/frontend/src/@redux/reducers/site.ts
index 2cf860674..2388910e2 100644
--- a/frontend/src/@redux/reducers/site.ts
+++ b/frontend/src/@redux/reducers/site.ts
@@ -18,7 +18,7 @@ interface Site {
   // Initialization state or error message
   initialized: boolean | string;
   auth: boolean;
-  progress: Server.Progress[];
+  progress: Site.Progress[];
   notifications: Server.Notification[];
   sidebar: string;
   badges: Badge;
diff --git a/frontend/src/@types/server.d.ts b/frontend/src/@types/site.d.ts
similarity index 91%
rename from frontend/src/@types/server.d.ts
rename to frontend/src/@types/site.d.ts
index e2db5b185..a2182c8cd 100644
--- a/frontend/src/@types/server.d.ts
+++ b/frontend/src/@types/site.d.ts
@@ -5,7 +5,9 @@ declare namespace Server {
     message: string;
     timeout: number;
   }
+}
 
+declare namespace Site {
   interface Progress {
     id: string;
     header: string;
diff --git a/frontend/src/App/Notification.tsx b/frontend/src/App/Notification.tsx
index 8c62caa37..5a6745ce4 100644
--- a/frontend/src/App/Notification.tsx
+++ b/frontend/src/App/Notification.tsx
@@ -36,7 +36,7 @@ enum State {
   Failed,
 }
 
-function useTotalProgress(progress: Server.Progress[]) {
+function useTotalProgress(progress: Site.Progress[]) {
   return useMemo(() => {
     const { value, count } = progress.reduce(
       (prev, { value, count }) => {
@@ -50,7 +50,7 @@ function useTotalProgress(progress: Server.Progress[]) {
     if (count === 0) {
       return 0;
     } else {
-      return value / count;
+      return (value + 0.001) / count;
     }
   }, [progress]);
 }
@@ -196,13 +196,14 @@ const Notification: FunctionComponent<Server.Notification> = ({
   );
 };
 
-const Progress: FunctionComponent<Server.Progress> = ({
+const Progress: FunctionComponent<Site.Progress> = ({
   name,
   value,
   count,
   header,
 }) => {
   const isCompleted = value / count > 1;
+  const displayValue = Math.min(count, value + 1);
   return (
     <div className="notification-center-progress d-flex flex-column">
       <p className="progress-header m-0 h-6 text-dark font-weight-bold">
@@ -214,9 +215,9 @@ const Progress: FunctionComponent<Server.Progress> = ({
       <ProgressBar
         className="mt-2"
         animated={!isCompleted}
-        now={value / count}
+        now={displayValue / count}
         max={1}
-        label={`${value}/${count}`}
+        label={`${displayValue}/${count}`}
       ></ProgressBar>
     </div>
   );
diff --git a/frontend/src/components/modals/BaseModal.tsx b/frontend/src/components/modals/BaseModal.tsx
index c80681ba2..89021effb 100644
--- a/frontend/src/components/modals/BaseModal.tsx
+++ b/frontend/src/components/modals/BaseModal.tsx
@@ -23,9 +23,11 @@ export const BaseModal: FunctionComponent<BaseModalProps> = (props) => {
   }, []);
 
   const exit = useCallback(() => {
-    closeModal(modalKey);
+    if (isShow) {
+      closeModal(modalKey);
+    }
     setExit(false);
-  }, [closeModal, modalKey]);
+  }, [closeModal, modalKey, isShow]);
 
   return (
     <Modal
diff --git a/frontend/src/components/modals/SubtitleToolModal.tsx b/frontend/src/components/modals/SubtitleToolModal.tsx
index aebd67e19..83ac4aaea 100644
--- a/frontend/src/components/modals/SubtitleToolModal.tsx
+++ b/frontend/src/components/modals/SubtitleToolModal.tsx
@@ -1,7 +1,4 @@
-import { faQuestionCircle } from "@fortawesome/free-regular-svg-icons";
 import {
-  faCheck,
-  faCircleNotch,
   faClock,
   faCode,
   faDeaf,
@@ -39,16 +36,19 @@ import {
   LanguageText,
   Selector,
   SimpleTable,
-  useCloseModalIfCovered,
   useModalPayload,
   useShowModal,
 } from "..";
+import BackgroundTask from "../../@modules/task";
+import { useIsGroupTaskRunning } from "../../@modules/task/hooks";
+import { createTask } from "../../@modules/task/utilites";
 import { useEnabledLanguages } from "../../@redux/hooks";
 import { SubtitlesApi } from "../../apis";
 import { isMovie, submodProcessColor } from "../../utilites";
 import { log } from "../../utilites/logger";
 import { useCustomSelection } from "../tables/plugins";
 import BaseModal, { BaseModalProps } from "./BaseModal";
+import { useCloseModal } from "./hooks";
 import { availableTranslation, colorOptions } from "./toolOptions";
 
 type SupportType = Item.Episode | Item.Movie;
@@ -57,40 +57,6 @@ type TableColumnType = FormType.ModifySubtitle & {
   _language: Language.Info;
 };
 
-enum State {
-  Pending,
-  Processing,
-  Done,
-}
-
-type ProcessState = StrictObject<State>;
-
-// TODO: Extract this
-interface StateIconProps {
-  state: State;
-}
-
-const StateIcon: FunctionComponent<StateIconProps> = ({ state }) => {
-  let icon = faQuestionCircle;
-  switch (state) {
-    case State.Pending:
-      icon = faClock;
-      break;
-    case State.Processing:
-      icon = faCircleNotch;
-      break;
-    case State.Done:
-      icon = faCheck;
-      break;
-  }
-  return (
-    <FontAwesomeIcon
-      icon={icon}
-      spin={state === State.Processing}
-    ></FontAwesomeIcon>
-  );
-};
-
 function getIdAndType(item: SupportType): [number, "episode" | "movie"] {
   if (isMovie(item)) {
     return [item.radarrId, "movie"];
@@ -328,51 +294,39 @@ const TranslateModal: FunctionComponent<BaseModalProps & ToolModalProps> = ({
   );
 };
 
-interface STMProps {}
+const TaskGroupName = "Modifying Subtitles";
 
-const STM: FunctionComponent<BaseModalProps & STMProps> = ({ ...props }) => {
+const STM: FunctionComponent<BaseModalProps> = ({ ...props }) => {
   const payload = useModalPayload<SupportType[]>(props.modalKey);
-
-  const [updating, setUpdate] = useState<boolean>(false);
-  const [processState, setProcessState] = useState<ProcessState>({});
   const [selections, setSelections] = useState<TableColumnType[]>([]);
 
-  const closeModal = useCloseModalIfCovered();
+  const hasTask = useIsGroupTaskRunning(TaskGroupName);
+
+  const closeModal = useCloseModal();
 
   const process = useCallback(
-    async (action: string, override?: Partial<FormType.ModifySubtitle>) => {
+    (action: string, override?: Partial<FormType.ModifySubtitle>) => {
       log("info", "executing action", action);
       closeModal(props.modalKey);
-      setUpdate(true);
 
-      let states = selections.reduce<ProcessState>(
-        (v, curr) => ({ [curr.path]: State.Pending, ...v }),
-        {}
-      );
-      setProcessState(states);
-
-      for (const raw of selections) {
-        states = {
-          ...states,
-          [raw.path]: State.Processing,
-        };
-        setProcessState(states);
+      const tasks = selections.map((s) => {
         const form: FormType.ModifySubtitle = {
-          id: raw.id,
-          type: raw.type,
-          language: raw.language,
-          path: raw.path,
+          id: s.id,
+          type: s.type,
+          language: s.language,
+          path: s.path,
           ...override,
         };
-        await SubtitlesApi.modify(action, form);
-
-        states = {
-          ...states,
-          [raw.path]: State.Done,
-        };
-        setProcessState(states);
-      }
-      setUpdate(false);
+        return createTask(
+          s.path,
+          s.id,
+          SubtitlesApi.modify.bind(SubtitlesApi),
+          action,
+          form
+        );
+      });
+
+      BackgroundTask.dispatch(TaskGroupName, tasks);
     },
     [closeModal, selections, props.modalKey]
   );
@@ -381,21 +335,6 @@ const STM: FunctionComponent<BaseModalProps & STMProps> = ({ ...props }) => {
 
   const columns: Column<TableColumnType>[] = useMemo<Column<TableColumnType>[]>(
     () => [
-      {
-        id: "state",
-        accessor: "path",
-        selectHide: true,
-        Cell: ({ value, loose }) => {
-          if (loose) {
-            const stateList = loose[0] as ProcessState;
-            if (value in stateList) {
-              const state = stateList[value];
-              return <StateIcon state={state}></StateIcon>;
-            }
-          }
-          return null;
-        },
-      },
       {
         Header: "Language",
         accessor: "_language",
@@ -459,15 +398,14 @@ const STM: FunctionComponent<BaseModalProps & STMProps> = ({ ...props }) => {
       <Dropdown as={ButtonGroup} onSelect={(k) => k && process(k)}>
         <ActionButton
           size="sm"
-          loading={updating}
-          disabled={selections.length === 0}
+          disabled={selections.length === 0 || hasTask}
           icon={faPlay}
           onClick={() => process("sync")}
         >
           Sync
         </ActionButton>
         <Dropdown.Toggle
-          disabled={updating || selections.length === 0}
+          disabled={selections.length === 0 || hasTask}
           split
           variant="light"
           size="sm"
@@ -511,25 +449,19 @@ const STM: FunctionComponent<BaseModalProps & STMProps> = ({ ...props }) => {
         </Dropdown.Menu>
       </Dropdown>
     ),
-    [showModal, updating, selections.length, process]
+    [showModal, selections.length, process, hasTask]
   );
 
   return (
     <React.Fragment>
-      <BaseModal
-        title={"Subtitle Tools"}
-        footer={footer}
-        closeable={!updating}
-        {...props}
-      >
+      <BaseModal title={"Subtitle Tools"} footer={footer} {...props}>
         <SimpleTable
-          isSelecting={!updating && data.length !== 0}
+          isSelecting={data.length !== 0}
           emptyText="No External Subtitles Found"
           plugins={plugins}
           columns={columns}
           onSelect={setSelections}
           data={data}
-          loose={[processState]}
         ></SimpleTable>
       </BaseModal>
       <AddColorModal process={process} modalKey="add-color"></AddColorModal>
diff --git a/frontend/src/components/modals/hooks.tsx b/frontend/src/components/modals/hooks.tsx
index ce2c3010b..8cb762c9a 100644
--- a/frontend/src/components/modals/hooks.tsx
+++ b/frontend/src/components/modals/hooks.tsx
@@ -41,46 +41,16 @@ export function useShowModal() {
 
 export function useCloseModal() {
   const {
-    control: { pop, peek },
+    control: { pop },
   } = useContext(ModalContext);
   return useCallback(
     (key?: string) => {
-      const modal = peek();
-      if (key) {
-        if (modal?.key === key) {
-          pop();
-        }
-      } else {
-        pop();
-      }
+      pop(key);
     },
-    [pop, peek]
+    [pop]
   );
 }
 
-export function useCloseModalIfCovered() {
-  const {
-    control: { pop, peek },
-  } = useContext(ModalContext);
-  return useCallback(
-    (key: string) => {
-      let modal = peek();
-      if (modal && modal.key !== key) {
-        pop();
-      }
-    },
-    [pop, peek]
-  );
-}
-
-export function useModalIsCovered(key: string) {
-  const { modals } = useContext(ModalContext);
-  return useMemo(() => {
-    const idx = modals.findIndex((v) => v.key === key);
-    return idx !== -1 && idx !== 0;
-  }, [modals, key]);
-}
-
 export function useIsModalShow(key: string) {
   const {
     control: { peek },
diff --git a/frontend/src/components/modals/provider.tsx b/frontend/src/components/modals/provider.tsx
index 2481b62bb..0681537da 100644
--- a/frontend/src/components/modals/provider.tsx
+++ b/frontend/src/components/modals/provider.tsx
@@ -1,5 +1,9 @@
-import React, { FunctionComponent, useMemo } from "react";
-import { useStackState } from "rooks";
+import React, {
+  FunctionComponent,
+  useCallback,
+  useMemo,
+  useState,
+} from "react";
 
 interface Modal {
   key: string;
@@ -9,7 +13,7 @@ interface Modal {
 interface ModalControl {
   push: (modal: Modal) => void;
   peek: () => Modal | undefined;
-  pop: () => Modal | undefined;
+  pop: (key: string | undefined) => void;
 }
 
 interface ModalContextType {
@@ -33,7 +37,39 @@ export const ModalContext = React.createContext<ModalContextType>({
 });
 
 const ModalProvider: FunctionComponent = ({ children }) => {
-  const [stack, { push, pop, peek }] = useStackState([]);
+  const [stack, setStack] = useState<Modal[]>([]);
+
+  const push = useCallback<ModalControl["push"]>((model) => {
+    setStack((old) => {
+      return [...old, model];
+    });
+  }, []);
+
+  const pop = useCallback<ModalControl["pop"]>((key) => {
+    setStack((old) => {
+      if (old.length === 0) {
+        return [];
+      }
+
+      if (key === undefined) {
+        const newOld = old;
+        newOld.pop();
+        return newOld;
+      }
+
+      // find key
+      const index = old.findIndex((v) => v.key === key);
+      if (index !== -1) {
+        return old.slice(0, index);
+      } else {
+        return old;
+      }
+    });
+  }, []);
+
+  const peek = useCallback<ModalControl["peek"]>(() => {
+    return stack.length > 0 ? stack[stack.length - 1] : undefined;
+  }, [stack]);
 
   const context = useMemo<ModalContextType>(
     () => ({ modals: stack, control: { push, pop, peek } }),