Fix extensions that are missing, disabled, or crashing with these reliable steps.
Go to atlas://extensions and confirm the extension toggle is on.
Update Atlas Browser to the latest version, then restart to clear extension state.
Remove the extension and reinstall it from the Chrome Web Store.
Turn off other extensions one by one to identify conflicts.
Clear cache and site data to remove corrupted state that can break extensions.
If your extension still fails, check whether it is compatible with Chromium browsers or try a different extension.