Is Claude Usage Monitor safe to install?

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:

• Read and change your data on claude.ai, fonts.googleapis.com, and fonts.gstatic.com
• Display notifications

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

Specific sites only: 3 match patterns.

• https://claude.ai/* only claude.ai
• https://fonts.googleapis.com/* only fonts.googleapis.com
• https://fonts.gstatic.com/* only fonts.gstatic.com

Routine for an extension

• Schedule work to run later alarms
• Show you notifications notifications
• Open a panel beside the page sidePanel
• Store data in your browser storage
• Store data in your browser without the usual size limit unlimitedStorage

Pages it runs its code on

It runs its own code on specific pages only: 1 site pattern.

• https://claude.ai/* only claude.ai

A content script is code the extension injects into pages matching these patterns. On those pages it can read and change what you see, whether or not a host permission is listed above.

How usual this is for its category

In Productivity · Tools, 20% of extensions ask for access to every site. This one: Access to specific sites only.

The typical extension there declares 3 browser permissions; this one declares 5 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

168 users

• Last updated in the store 13 days ago, on 2026-10-19.
• We have seen 1 new version in the last 90 days.

What the store shows

• Established publisher The store's badge for publishers with a good record and no history of violations.

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.

1. 2026-10-19Swapped which permissions it asks for (changed: browser permissions)

Versions we have seen

1. 2026-10-19Version 1.26.1 · Swapped which permissions it asks for (changed: browser permissions)

Who publishes it

Full Screen Dev, who publishes 20 listings we track. This listing has been in the store since 2026-05-17 and was last updated on 2026-10-19.

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. Claude Usage Monitor Access to specific sites only · 1 permission, 1 site pattern 82 users ★ 5.0
2. Claude Usage Tracker & Monitor: Session & Weekly Limits, Credits, Alerts Access to specific sites only · 2 permissions, 5 site patterns 2k users ★ 4.9
3. Claude Usage Monitor Access to specific sites only · 2 permissions, 1 site pattern 137 users ★ 4.5

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 Claude Usage Monitor access?

Specific sites only: 3 match patterns. It declares 5 browser permissions.

What data does Claude Usage Monitor 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 Claude Usage Monitor asked for more permissions over time?

Its permissions changed once while we watched, on 2026-10-19.

Does Claude Usage Monitor publish a privacy policy?

Yes, the store listing links to a privacy policy.