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Permissions and history

Is ISBN Book Info safe to install?

ISBN Book Info asks for 1 browser permission and declares no blanket site access. 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.

ISBN Book Info

Chrome extension by michelangelo.casini · Productivity · Education

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 site access
Data collection
Declares it collects none
Publisher
No store badges
Audience
20 users

What data it declares

The developer declares that it does not collect or use your data.

The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.

The listing links to a privacy policy.

This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

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.

Routine for an extension

How usual this is for its category

In Productivity · Education, 17% of extensions ask for access to every site. This one: No site access.

The typical extension there declares 3 browser permissions; this one declares 1 browser permission.

Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.

Who uses it and how it is kept up

20 users

Users
+1 since 01.09
18-24 · 25 readings
  1. 2026-09-0119
  2. 2026-09-0222
  3. 2026-09-0420
  4. 2026-09-0621
  5. 2026-09-0720
  6. 2026-09-0821
  7. 2026-09-0918
  8. 2026-09-1320
  9. 2026-09-1521
  10. 2026-09-1720
  11. 2026-09-2119
  12. 2026-09-2620
  13. 2026-10-0422
  14. 2026-10-0821
  15. 2026-10-0923
  16. 2026-10-1022
  17. 2026-10-1323
  18. 2026-10-1722
  19. 2026-10-1824
  20. 2026-10-1922
  21. 2026-10-2123
  22. 2026-10-2324
  23. 2026-10-2823
  24. 2026-10-2924
  25. 2026-11-0120

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

michelangelo.casini. This listing has been in the store since 2025-03-11 and was last updated on 2025-03-11.

Similar extensions that ask for less

Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.

  1. BookCollectorConnect No permissions at all · No permissions declared 247 users ★ 3.0

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 ISBN Book Info access?
No site access is declared in the manifest, so it cannot read the pages you open on its own. It declares 1 browser permission.
What data does ISBN Book Info collect?
The developer declares that it does not collect or use your data. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
Has ISBN Book Info asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does ISBN Book Info publish a privacy policy?
Yes, the store listing links 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 2026-11-01.

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