It looks like Electron 10 doesn't work with React and Redux DevTools Chrome extensions. When loading Redux extension, I'm getting the following error.
(node:17777) ExtensionLoadWarning: Warnings loading extension at /home/perttu/.config/Electron/extensions/lmhkpmbekcpmknklioeibfkpmmfibljd: Unrecognized manifest key 'commands'. Unrecognized manifest key 'homepage_url'. Unrecognized manifest key 'page_action'. Unrecognized manifest key 'short_name'. Unrecognized manifest key 'update_url'. Permission 'notifications' is unknown or URL pattern is malformed. Permission 'contextMenus' is unknown or URL pattern is malformed. Permission 'tabs' is unknown or URL pattern is malformed. Cannot load extension with file or directory name _metadata. Filenames starting with "_" are reserved for use by the system.
Error: Exited with code 9
The same kind of errors occurs when loading React Developer Tools.
(node:19201) ExtensionLoadWarning: Warnings loading extension at /home/perttu/.config/google-chrome/Default/Extensions/fmkadmapgofadopljbjfkapdkoienihi/4.8.2_0: Unrecognized manifest key 'browser_action'. Unrecognized manifest key 'minimum_chrome_version'. Unrecognized manifest key 'update_url'. Manifest contains a differential_fingerprint key that will be overridden on extension update. Cannot load extension with file or directory name _metadata. Filenames starting with "_" are reserved for use by the system.
I suspect that the problem is in the Electron itself, because although Redux tab is visible in the UI, the window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ is not defined. Redux tab itself is complaining that No store found. Make sure to follow the instructions.
It's easy to reproduce the problem by cloning https://github.com/electron-react-boilerplate/electron-react-boilerplate and changing the Electron version to 10.
So, has somebody been successful in loading either React or Redux extensions on Electron 10?