Most people think fighting online threats is something only cybersecurity professionals can do.
I disagree.
You do not need to be a cybersecurity guru to make a meaningful difference online. Sometimes the most effective defenses are simple tools that help everyday users slow down, pay attention, and make informed decisions.
Over the last few years, I built two Google Chrome extensions with one goal:
Help ordinary internet users recognize potential threats before they become victims.
These are not enterprise security products. They're practical tools designed for regular people.
Extension #1: Website Safety and Typosquatting Detection
One of the biggest online threats today is phishing.
A fraudulent website may look almost identical to a legitimate one. The difference could be a single letter, a missing character, or a cleverly disguised domain name.
To help address this problem, I created a Chrome extension that analyzes the website a user is visiting and checks it against a large database of more than 500,000 websites and domains, including government, educational, and other trusted sources.
When a user lands on a website, the extension can:
- Detect potential typosquatting attempts
- Alert users about suspicious domains
- Flag websites that may not be trustworthy
- Block websites categorized as unsafe
- Block adult or NSFW content
- Restrict access to selected categories such as gaming sites
- Allow users to customize their own block and allow lists
The goal is not to tell users what they can or cannot visit.
The goal is to give users more information so they can make safer choices.
Cybercriminals often rely on users clicking first and thinking later. A simple warning can sometimes be enough to prevent a costly mistake.
Extension #2: File Type Inspector and Download Protection
The second extension focuses on another area many users overlook:
Files.
Most people click links and download files without checking what they are actually opening.
A file may appear harmless but could be something entirely different than expected.
This extension helps users understand what is happening before a file is downloaded or opened.
Key features include:
- Displays the file type before interaction
- Warns users about potentially risky file formats
- Monitors download activity in the browser
- Blocks or cancels certain automatic downloads
- Gives users the option to continue after reviewing the warning
- Increases awareness of files being accessed through the browser
The purpose is simple:
Make the invisible visible.
Rather than silently allowing downloads to occur, the extension encourages users to pause and understand what they are interacting with.
Why I Built Them
Cybersecurity awareness is often presented as a complex topic filled with technical jargon.
Yet many online attacks succeed for surprisingly simple reasons:
- Clicking the wrong website
- Downloading the wrong file
- Trusting a link that looks legitimate
- Missing a warning sign
I believe technology should help bridge that gap.
The average person should not need advanced security training to receive basic protection.
If a browser can warn us before visiting a suspicious website or opening a potentially risky file, that's a step in the right direction.
One Extension Is Public, One Is Still in Testing
The website protection extension is publicly available through the Chrome Web Store.
The file inspection extension is currently available through a Chrome testing group because I have reached my Chrome Web Store publication limits.
Testers can join the group, access the installation instructions, and try the extension before a wider release.
Final Thoughts
The internet becomes safer when more people have access to practical security tools.
I am not trying to replace antivirus software, enterprise security platforms, or professional cybersecurity teams.
I simply wanted to build tools that help everyday users recognize common threats before they become problems.
Sometimes making the web safer starts with something as simple as a warning message at the right moment.
And if enough people receive that warning, it can make a real difference.
What online safety feature do you wish browsers included by default?
I'd love to hear your thoughts and ideas.