What is CertiSafeGuard?

CertiSafeGuard focuses on checking when the current website's security certificate will expire. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use CertiSafeGuard?

CertiSafeGuard is a consumer product built for firefox users and website administrators.

Is CertiSafeGuard free?

Yes — CertiSafeGuard is free to use.

What platforms does CertiSafeGuard run on?

CertiSafeGuard runs on the web, embeddable surfaces, Windows, macOS, and Linux.

Is CertiSafeGuard still active?

Unverified. CertiSafeGuard has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to CertiSafeGuard?

Similar projects tracked by PulseGate include CertiStatus Plus, Certage, and Website Safety Checker.

Who makes CertiSafeGuard?

CertiSafeGuard is developed by F8bet.

How long has CertiSafeGuard been around?

CertiSafeGuard first shipped in 2023.

Back to the index

CertiSafeGuard

Name: CertiSafeGuard
Author: F8bet

mozilla.orgBrowser DevTools & extensions

CertiSafeGuard is a Firefox extension that calculates and displays the number of days remaining before the current page's website certificate expires. It is intended for Firefox users who want a quick way to inspect certificate validity while browsing.

FreeWebEmbeddableWindowsmacOSLinux

Visit mozilla.org

Overview

4 features

CertiSafeGuard is a Browser DevTools & extensions project. It focuses on checking when the current website's security certificate will expire. It is built as a consumer product for firefox users and website administrators. CertiSafeGuard is free to use. It runs on the web, embeddable surfaces, Windows, macOS, and Linux.

Behind CertiSafeGuard is F8bet, and it first shipped in 2023. Among its 4 catalogued features are certificate countdown, current-page inspection, and expiration alerts. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Certificate countdown
Current-page inspection
Expiration alerts
Browser tab access

Built with & integrations

Runs on

BrowserEmbeddableWindowsmacOSLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed17 Sep · 06:25 UTC
CertiSafeGuard verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about CertiSafeGuard

What is CertiSafeGuard?: CertiSafeGuard focuses on checking when the current website's security certificate will expire. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use CertiSafeGuard?: CertiSafeGuard is a consumer product built for firefox users and website administrators.
Is CertiSafeGuard free?: Yes — CertiSafeGuard is free to use.
What platforms does CertiSafeGuard run on?: CertiSafeGuard runs on the web, embeddable surfaces, Windows, macOS, and Linux.
Is CertiSafeGuard still active?: Unverified. CertiSafeGuard has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to CertiSafeGuard?: Similar projects tracked by PulseGate include CertiStatus Plus, Certage, and Website Safety Checker.CertiStatus Plus Certage Website Safety Checker
Who makes CertiSafeGuard?: CertiSafeGuard is developed by F8bet.
How long has CertiSafeGuard been around?: CertiSafeGuard first shipped in 2023.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users and website administrators
Model: B2C
Solves: Checking when the current website's security certificate will expire.

Registered as

Firefox Add-ons: certisafeguard

Developer

F8bet

Index record

Indexed: 17 Sep 2026
Lifecycle: Alive
Last seen: 17 Sep 2026

Identity audit (13)

Slug: certisafeguard-mozilla-org
Lifecycle state recorded: 17 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 17 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 17 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/certisafeguard

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do