+const prefs = { 'intl.accept_languages': 'en' }
+process.env.LANG = 'en'
+
+// https://github.com/mozilla/geckodriver/issues/1354#issuecomment-479456411
+process.env.MOZ_HEADLESS_WIDTH = '1280'
+process.env.MOZ_HEADLESS_HEIGHT = '1024'
+
+const windowSizeArg = `--window-size=${process.env.MOZ_HEADLESS_WIDTH},${process.env.MOZ_HEADLESS_HEIGHT}`