CyberCheck360 Email Guard Firefox

CyberCheck360 Email Guard

Every Gmail link, checked before you click. Preview any page safely. Open risky attachments in a sandbox. Built for non-techies.

Features & Capabilities

Every Gmail link, checked before you click. Preview any page safely. Open risky attachments in a sandbox. Built for non-techies.

Every Gmail link, checked before you click:

The moment you open an email, every link inside it is checked against live threat intelligence and labelled right there in your inbox as safe, suspicious, or malicious. You see the verdict before your mouse moves.

Turn on Auto Link Protection and every link in Gmail is silently rewritten to route through our safety check first. You click the way you always have. If the destination is clean, you go straight there. If it's dangerous, we stop the page from loading and tell you why.

Preview any page safely:

Not ready to trust a link even after a green tick? Hit Scan. In about two seconds you get a live screenshot of the destination page, the domain's age, who registered it, where it's hosted, and the abuse contact if you need to report it.

A domain registered three days ago claiming to be your bank? Now you can see that before you type your password into it. It's the same check a security analyst would run, done for you in one tap, without your browser ever touching the site.

Open risky attachments in a sandbox:

That invoice from a vendor you don't remember. The shipping notice for something you didn't order. The "signed contract" from a name that's close to your client's.

Turn on Auto File Protection and every attachment opens inside a secure sandbox by default. It's an isolated browser that can't reach your computer, your files, your Drive, or your saved passwords. If the file is a real document, you read it as normal. If it's malicious, it stays contained in the sandbox and closes when you close the tab.

Wrong call? Fix it in one tap:

Every link has a flag icon. Report a false positive or a missed threat in a single click, and the detection sharpens for you, and for everyone else using it.

Built for non-techies, and priced like it:

CyberCheck360 Email Guard is $5.99 a month. Less than one lunch. Less than a streaming subscription. Less than the fee your bank will charge you to try to reverse a fraudulent transaction that you'll probably never get back.

The average phishing loss for an individual runs into the thousands. Recovery is worse than the initial hit: new passwords, new cards, credit monitoring, hours burned on hold.

You're not paying for software. You're paying so "I clicked the wrong thing" is never a sentence you have to say out loud.

This is for you if you're:

• An accountant, bookkeeper, or finance professional handling invoices and wire instructions all day • A realtor, lawyer, or consultant whose business runs through email and can't afford a breach of client trust • A small business owner who is also, unofficially, the IT department • A freelancer or solo operator whose inbox is the business • Anyone who has ever paused before clicking a link and wished someone smarter was standing behind them

A few honest things to know:

• Works only inside Gmail (gmail.com). Does not read, monitor, or touch any other tab, site, or browser activity. Banking, work docs, private browsing all stay completely untouched. • Requires a CyberCheck360 subscription to activate. You're paying for the live threat intelligence, the sandbox infrastructure, and continuous updates behind the scenes. • Your Gmail credentials are never shared with us. We check links and files. We don't touch your login.

Install now. The next suspicious email will come, and when it does, you'll be glad this was already there.

User Growth & Download Statistics

Manifest V3 Add-on
By:
Kaavalan Limited
Daily users:
2
Version:
1.0.1 Last updated: 2026-09-02
Version code:
6455432
Creation date:
2026-08-29
Firefox add-on GUID:
gmail-email-guard@cybercheck360.com
Firefox add-on numeric ID:
3062398
Weekly download count:
6
Firefox on Android:
No
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • https://mail.google.com/*
  • https://*.googleusercontent.com/*
  • https://boldwinkie.cybercheck360.com/*
  • https://email.cybercheck360.com/*
Content scripts matches:
  • mail.google.com
Size:
160.48KB
Email:
su*****@cybercheck360.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-07
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Kaavalan Limited
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/cybercheck360-email-guard/
Email:
su*****@cybercheck360.com
Website:
https://cybercheck360.com/contact/?reason=support

Is CyberCheck360 Email Guard Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

CyberCheck360 Email Guard requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: google.com, googleusercontent.com, cybercheck360.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

CyberCheck360 Email Guard is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
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