extension ExtPose

Melatonin (delisted)

CRX id


Description from extension meta

Your melatonin levels follow the sun, so should you browser!

Image from store Melatonin
Description from store Melatonin for Chrome keeps your browser's color temperature in tune with the sun. It overlays webpages with a warm film during the evening and at night, and a cold film during the day in order to ease the strain of a backlit screen on your eyes. Blue light has been shown to interfere with your sleep pattern, and so Melatonin aims to create a more natural browsing experience. Automatic color updating is done by calculating the sun's altitude in the sky based on time of day and geolocation. I made Melatonin for use on my Chromebook. I hope you too will find it useful. NOTES This extension and its source code is freely available on https://github.com/giraj/melatonin. If you are running Windows, OS X or Linux, usually there are better solutions. Check out F.lux or Redshift. I made Melatonin with ChromeOS in mind. When loading a new page, the overlay isn't usually instantaneous. This is because the overlay is being created by a script that is injected into the webpage you're visiting, and it is run only after the document has reached a certain point in loading (as specified by "run_at" : "document_start"). Often this is quite quick, it should load before images and most of the page load (when the DOM is ready). However, it varies and depends on the page you're visiting. Due to not being able to overlay the chrome interface itself, special pages such as "about_blank", extensions, bookmarks, etc.. are unaffected. This also means there is a blank white page between pageloads that I am unable to overlay. To avoid white flashes between pageloads especially, I try to open new links in new tabs. When I change tab a moment later, usually the overlay has finished.

Latest reviews

  • (2017-07-28) Throwaway 420: Night Mode is now here for Chrome (beta build)! https://productforums.google.com/forum/#!msg/chromebook-central/OE1LnWqpQ5k/heecXZ46AgAJ
  • (2015-09-25) Seems to work OK.
  • (2015-06-22) Tao Ling: It's alright, but the price in my opinion is overkill, especially when the idea that this extension is based off off (flux) is free.
  • (2015-05-01) Web Master: melatonin does not offer the flexibility of screan shader. And it costs 6 dollars. The extemely accurate settings feel like over-kill, and you barely notice a difference through the day. The settings make no sense, and a preview of what the shade will be like through the day would be better. I love the concept tho but please work on it a bit more
  • (2014-08-13) Gillian MacMillan: Best one for Chromebook that I have found so far.
  • (2014-06-24) Sean M: Nice app but needs some work. There is a delay for the brightness settings to kick in when opening a new tap and when I use the hoverzoom extension expanded images are displayed at normal white levels.

Latest issues

  • (2016-05-11, v:0.3.5) Filter doesn't work on facebook.com
    When facebook is loading, the filter will overlay; however, once it is fully loaded, the filter is not applied. Any fixes for this? It's also not working on this page right now...
  • (2014-12-23, v:0.3.2) Glenn Hubbard: Chrome Experimental Web Feature
    Which one will improve the functioning of Melatonin?


130 history
3.0 (11 votes)
Last update / version
2015-07-21 / 0.3.5
Listing languages
fr en