Support

Updated 2026-11-02

Questions, bugs or billing problems: email rodrigo.alonso.rodra@gmail.com. We reply as soon as we can.

Good to know

• If it is about your subscription, include your licence key (MM-XXXX-…). Never send card details.
• To cancel, change your card or download invoices, use Manage subscription. Cancelling keeps access until the end of the paid month.
• Shortcut: Alt+Shift+M turns Migraine Mode on or off. You can change it at chrome://extensions/shortcuts.
• Chrome does not let extensions change chrome:// pages or the Chrome Web Store, so they are not dimmed.
• Migraine Mode changes how pages look; it cannot change your monitor's real brightness, backlight or PWM.
• It is a screen-comfort tool, not medical advice. For frequent or severe headaches, see a doctor. The sources for every default are in Why these settings.

Not a medical device and not medical advice. Migraine Mode is a screen-comfort tool: it does not diagnose, treat, cure or prevent migraine or any other condition, and it does not replace a doctor. Its settings are based on studies of light, colour, flicker, patterns and motion; the extension itself has not been clinically tested. When to see a doctor.