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Is GAS Fee & Link Checker safe to install?

GAS Fee & Link Checker asks for 3 browser permissions 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.

GAS Fee & Link Checker

Chrome extension by 0xJohnny, Max | FomoDog · Productivity · Workflow

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.

Data collection
1 kind of data declared
Publisher
No store badges
Audience
323 users · 5.0/5

What data it declares

The developer declares that it collects these kinds of 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 does not link 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

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

Worth knowing

Routine for an extension

Pages it runs its code on

It runs its own code on every page you open: the manifest declares a content script for all sites.

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 · Workflow, 19% of extensions ask for access to every site. This one: Runs its code on every site.

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

323 users

Users
+9 since 31.08
309-342 · 34 readings
  1. 2026-08-31314
  2. 2026-09-02321
  3. 2026-09-05327
  4. 2026-09-06325
  5. 2026-09-07321
  6. 2026-09-08317
  7. 2026-09-09318
  8. 2026-09-13320
  9. 2026-09-15329
  10. 2026-09-17319
  11. 2026-09-20313
  12. 2026-09-21312
  13. 2026-09-25309
  14. 2026-09-26312
  15. 2026-10-04317
  16. 2026-10-08326
  17. 2026-10-09321
  18. 2026-10-10322
  19. 2026-10-13319
  20. 2026-10-16323
  21. 2026-10-17327
  22. 2026-10-18333
  23. 2026-10-19337
  24. 2026-10-21338
  25. 2026-10-22337
  26. 2026-10-23339
  27. 2026-10-24342
  28. 2026-10-25340
  29. 2026-10-28332
  30. 2026-10-29337
  31. 2026-10-30336
  32. 2026-11-01322
  33. 2026-11-03323
  34. 2026-11-05323

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

0xJohnny, Max | FomoDog, who publishes 3 listings we track. This listing has been in the store since 2021-12-30 and was last updated on 2021-12-30.

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. EthereumGasTracker No site access · 1 permission 3 users (last published figure)
  2. ETH Fee Tracker Runs its code on every site · 2 permissions 9 users ★ 5.0
  3. Gastly No site access · 2 permissions 184 users ★ 5.0

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 GAS Fee & Link Checker access?
No site access is declared in the manifest, so it cannot read the pages you open on its own. It declares 3 browser permissions.
What data does GAS Fee & Link Checker collect?
The developer declares that it collects these kinds of data: Website content. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
Has GAS Fee & Link Checker asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does GAS Fee & Link Checker 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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