React Developer Tools are not being installed

[gndelia]

When starting the application, the dev tools are opened, and while Redux dev tools are installed, the React developer tools are not.

console output

(node:51654) ExtensionLoadWarning: Warnings loading extension at ~/Library/Application Support/metronome-desktop-wallet/extensions/fmkadmapgofadopljbjfkapdkoienihi:
[1]   Unrecognized manifest key 'browser_action'.
[1]   Unrecognized manifest key 'minimum_chrome_version'.
[1]   Unrecognized manifest key 'update_url'.
[1]   Cannot load extension with file or directory name _metadata. Filenames starting with "_" are reserved for use by the system.
[1] 
[1] (Use `Electron --trace-warnings ...` to show where the warning was created)
[1] (node:51654) ExtensionLoadWarning: Warnings loading extension at ~/Library/Application Support/metronome-desktop-wallet/extensions/lmhkpmbekcpmknklioeibfkpmmfibljd:
[1]   Unrecognized manifest key 'commands'.
[1]   Unrecognized manifest key 'homepage_url'.
[1]   Unrecognized manifest key 'page_action'.
[1]   Unrecognized manifest key 'short_name'.
[1]   Unrecognized manifest key 'update_url'.
[1]   Permission 'notifications' is unknown or URL pattern is malformed.
[1]   Permission 'contextMenus' is unknown or URL pattern is malformed.
[1]   Cannot load extension with file or directory name _metadata. Filenames starting with "_" are reserved for use by the system.