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Is BLOCK CLOCK - Focus Timer safe to install?

BLOCK CLOCK - Focus Timer asks for 4 browser permissions and 2 site patterns. 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.

BLOCK CLOCK - Focus Timer

Chrome extension by yuta.fujiwara1029 · Productivity · Workflow

Open in the Chrome Web Store
What the developer says, and 3 screenshots

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
Access to every site
Data collection
Declares it collects none
Audience
112 users · 4.9/5

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

When you add it, Chrome asks you to allow it to:

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

Every site you visit. This extension can read and change the content of any page you open. What access to every site means

Reaches your browsing data or every site

Routine for an extension

How usual this is for its category

In Productivity · Workflow, 19% of extensions ask for access to every site. This one: Access to every site.

The typical extension there declares 3 browser permissions; this one declares 4 browser permissions.

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

112 users

Users
-2 since 01.09
103-117 · 39 readings
  1. 2026-09-01114
  2. 2026-09-03116
  3. 2026-09-04115
  4. 2026-09-06113
  5. 2026-09-07109
  6. 2026-09-08106
  7. 2026-09-10103
  8. 2026-09-13106
  9. 2026-09-15109
  10. 2026-09-20105
  11. 2026-09-21106
  12. 2026-09-26105
  13. 2026-09-28108
  14. 2026-10-05103
  15. 2026-10-08106
  16. 2026-10-09103
  17. 2026-10-10108
  18. 2026-10-13110
  19. 2026-10-16116
  20. 2026-10-17113
  21. 2026-10-18111
  22. 2026-10-19112
  23. 2026-10-21111
  24. 2026-10-22115
  25. 2026-10-24114
  26. 2026-10-25113
  27. 2026-10-26114
  28. 2026-10-28117
  29. 2026-10-29115
  30. 2026-10-30112
  31. 2026-11-01116
  32. 2026-11-02117
  33. 2026-11-04115
  34. 2026-11-06113
  35. 2026-11-07111
  36. 2026-11-08105
  37. 2026-11-10106
  38. 2026-11-11112
  39. 2026-11-12112

What the store shows

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

yuta.fujiwara1029. This listing has been in the store since 2018-04-24 and was last updated on 2025-08-18.

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. Distraction Blocker No site access · 1 permission 2 users
  2. FocusBlock - Controle de Distrações No site access · 4 permissions 5 users ★ 5.0
  3. Brainrot Repair Access to specific sites only · 2 permissions, 4 site patterns 4 users

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 BLOCK CLOCK - Focus Timer access?
Every site you visit. This extension can read and change the content of any page you open. It declares 4 browser permissions.
What data does BLOCK CLOCK - Focus Timer 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 BLOCK CLOCK - Focus Timer asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does BLOCK CLOCK - Focus Timer 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 2026-11-12.

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