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Is NightScout.info CGM Utility safe to install?

NightScout.info CGM Utility declares no browser permissions and no site access in its manifest, which is as narrow as an extension gets. We do not audit code and we do not judge intent; what we can show is what the listing declares and whether that has changed while we have been watching.

NightScout.info CGM Utility

Chrome Web Store listing by Nightscout

Open in the Chrome Web Store
What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

At a glance

Facts, not a score: an ad blocker needs every page and a theme needs nothing, so one number would be wrong about both. Each fact links to its detail.

Site access
No permissions at all
Publisher
No store badges
Audience
309 users · 4.9/5

What data it declares

The listing carries no declaration about the data it collects.

The listing does not link to a privacy policy.

What Chrome asks you to allow

From the permissions it declares, Chrome shows no permission warning when you add it.

Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

We have not read this listing's manifest since we started keeping permission names. The counts on the card come from the last time we did.

Where it runs its code

We have not read this listing's manifest since we started keeping where it embeds its code, what it may ask for later and which sites can connect to it. The next pass of the store fills this in.

Who uses it and how it is kept up

309 users

Users
+3 since 01.09
302-322 · 36 readings
  1. 2026-09-01306
  2. 2026-09-02310
  3. 2026-09-03313
  4. 2026-09-04317
  5. 2026-09-06315
  6. 2026-09-07312
  7. 2026-09-08314
  8. 2026-09-09322
  9. 2026-09-15320
  10. 2026-09-16321
  11. 2026-09-20315
  12. 2026-09-21311
  13. 2026-09-25304
  14. 2026-09-27309
  15. 2026-09-28317
  16. 2026-10-04311
  17. 2026-10-09307
  18. 2026-10-10308
  19. 2026-10-11311
  20. 2026-10-13316
  21. 2026-10-16319
  22. 2026-10-17317
  23. 2026-10-18311
  24. 2026-10-19310
  25. 2026-10-20307
  26. 2026-10-21310
  27. 2026-10-22304
  28. 2026-10-23307
  29. 2026-10-24309
  30. 2026-10-25309
  31. 2026-10-28304
  32. 2026-10-29302
  33. 2026-10-30304
  34. 2026-11-01303
  35. 2026-11-04309
  36. 2026-11-05309

What the store shows

The store shows none of its badges on this listing. Most listings carry none.

Has it asked for more over time?

This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.

The permissions this extension requests have not changed since we started watching it.

Who publishes it

Nightscout. This listing has been in the store since 2014-08-11 and was last updated on 2015-01-22.

How to check or remove it in Chrome

  1. Type chrome://extensions in the address bar and find the extension in the list.
  2. Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
  3. To uninstall it, choose Remove on the same page.

Questions people ask

What can NightScout.info CGM Utility access?
No site access is declared in the manifest, so it cannot read the pages you open on its own. It declares no browser permissions.
What data does NightScout.info CGM Utility collect?
The listing carries no declaration about the data it collects.
Has NightScout.info CGM Utility asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does NightScout.info CGM Utility publish a privacy policy?
No, the store listing does not link to a privacy policy.

We read the public store listing up to 2 times a day and keep what it declared. We do not install the extension, do not audit its code, do not judge its intent and publish no contact details for its developer. Last read on 2026-11-05.

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