Is Whom? Gerenciador de certificados digitais safe to install?

What data it declares

The developer declares that it collects these kinds of data:

• Location such as region, IP address or GPS coordinates
• User activity such as clicks, scrolling, keystrokes or network monitoring

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 all your data on all websites
• Manage your downloads
• Read your browsing history
• Manage your apps, extensions, and themes
• Display notifications
• Block content on any page

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

• Clear your browsing data browsingData
• Read and change cookies on the sites it can access cookies
• See, enable and disable your other extensions management
• Change which proxy your browser connects through proxy
• See the address and title of every tab you have open tabs

Worth knowing

• Block or redirect requests by rules it declares in advance declarativeNetRequest
• Manage your downloads downloads
• Sign you in with a Google account identity
• Run its own code on the pages it can access scripting
• See when you navigate between pages webNavigation

Routine for an extension

• Act on the current tab, but only after you click it activeTab
• Show you notifications notifications
• Open a panel beside the page sidePanel
• Store data in your browser storage
• Read your processor details system.cpu
• Read how much memory your device has system.memory
• Store data in your browser without the usual size limit unlimitedStorage

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.

• *://*/* every site
• https://iss.fazenda.df.gov.br/* only iss.fazenda.df.gov.br
• https://assinador.tce.ms.gov.br/* only assinador.tce.ms.gov.br

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.

Sites that can connect to it

Any web page can open a messaging channel to this extension; the manifest allows every site.

• *://*/* every site

Declared as externally connectable in the manifest: a page on these sites can exchange messages with the extension, for example to tell it you have signed in. It does not give the page access to your browser.

How usual this is for its category

In Make Chrome Yours · Privacy, 42% 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 17 browser permissions.

• Clear your browsing data (browsingData): 4% of extensions in this category ask for it.
• Read and change cookies on the sites it can access (cookies): 7% of extensions in this category ask for it.
• See, enable and disable your other extensions (management): 4% of extensions in this category ask for it.
• Change which proxy your browser connects through (proxy): 14% of extensions in this category ask for it.
• See the address and title of every tab you have open (tabs): 32% of extensions in this category ask for it.

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

100k users

• Last updated in the store 3 days ago, on 2026-10-29.
• We have seen 8 new versions in the last 90 days.

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.

Versions we have seen

1. 2026-10-30Version 3.5.8
2. 2026-10-23Version 3.5.7
3. 2026-10-08Version 3.5.6
4. 2026-10-02Version 3.5.5
5. 2026-09-29Version 3.5.4
6. 2026-09-19Version 3.5.3
7. 2026-09-18Version 3.5.1
8. 2026-09-04Version 3.5.0

Who publishes it

Gerenciador de Certificados Digitais, who publishes 2 listings we track. This listing has been in the store since 2022-03-18 and was last updated on 2026-10-29.

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. iSigner Assinatura Digital Runs its code on every site · 1 permission 6 users (last published figure)
2. Governança Brasil - Assinatura Digital Runs its code on every site · 2 permissions 173 users (last published figure)
3. Assinatura Digital no Navegador Runs its code on every site · 2 permissions 800k users ★ 2.5

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 Whom? Gerenciador de certificados digitais access?

Every site you visit. This extension can read and change the content of any page you open. It declares 17 browser permissions.

What data does Whom? Gerenciador de certificados digitais collect?

The developer declares that it collects these kinds of data: Location, User activity. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

Has Whom? Gerenciador de certificados digitais asked for more permissions over time?

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

Does Whom? Gerenciador de certificados digitais publish a privacy policy?

Yes, the store listing links to a privacy policy.