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To access and retrieve data from a state managed by Redux in a Chrome browser extension, you need to follow these steps:

1. Add the Redux store to the background script of your Chrome extension.
2. Export the store object from your background script.
3. Access the store object from your content script or popup script using the chrome.runtime.getBackgroundPage() method.
4. Use the store.getState() method to retrieve the current state of your Redux store.
5. Use the retrieved state to perform any operations in your extension.

Here is an example code snippet to retrieve data from a Redux store in a Chrome extension:

background.js

import { createStore } from 'redux';
import rootReducer from './reducers';

const store = createStore(rootReducer);

export default store;

content.js

chrome.runtime.getBackgroundPage((backgroundPage) => {
  const store = backgroundPage.default;
  const state = store.getState();

  console.log(state);
});

In this example, we are exporting the Redux store from the background script and accessing it from the content script using the chrome.runtime.getBackgroundPage() method. We are then using the store.getState() method to retrieve the current state of the store and logging it to the console.

Note: Make sure to include the background script in the background section of the extension's manifest file.