4.4 min readBy Published On: May 9, 2024Categories: Cybersecurity News

Browser extensions have become as common as mobile apps. People tend to download many and use few. Over 176,000 browser extensions are available on Google Chrome alone, offering users extra functionalities and customization options.

While browser extensions enhance the browsing experience, they also pose a danger, which can mean significant risks to online security and privacy.

In this article, we unravel the dangers associated with browser extensions. We’ll shed light on the potential threats they pose and provide insights into safeguarding your online presence.


The Allure and Perils of Browser Extensions

Browser extensions are often hailed for their convenience and versatility. They are modules that users can add to their web browsers, extending functionality and adding customizable elements.

The variety of extensions is vast, from ad blockers and password managers to productivity tools. However, the ease with which users can install these extensions is a weakness, as it also introduces inherent security risks.

Next, we’ll delve into the hazards associated with browser extensions. It is imperative to strike a balance between the benefits and dangers.


Key Risks Posed by Browser Extensions

Privacy Intrusions

Many browser extensions request broad permissions, which, if abused, can compromise user privacy. Some of these include accessing browsing history and monitoring keystrokes. Certain extensions may overstep their intended functionality, leading to the unauthorized collection of sensitive information. Users often grant permissions without thoroughly reviewing them, which can cause them to expose personal data to potential misuse unintentionally.


Malicious Intent

Many extensions are developed with genuine intentions, but some harbour malicious code. This code can exploit users for financial gain or other malicious purposes. These rogue extensions may inject unwanted ads, track user activities or even deliver malware.

These extensions often use deceptive practices, making it challenging for users to distinguish between legitimate and malicious software.


Outdated or Abandoned Browser Extensions

Extensions that are no longer maintained or updated pose a significant security risk. Outdated extensions may have unresolved vulnerabilities. Hackers can exploit them to gain access to a user’s browser, potentially compromising their entire system. Without regular updates and security patches, these extensions become a liability.


Phishing and Social Engineering

Some malicious extensions engage in phishing attacks and social engineering tactics. These attacks can trick users into divulging sensitive information.

This can include creating fake login pages or mimicking popular websites, leading unsuspecting users to provide data unknowingly. Sensitive data, like usernames, passwords, or other confidential details.


Browser Performance Impact

Certain extensions can significantly impact browser performance. This can happen because they are poorly coded or laden with unnecessary features, resulting in a subpar user experience and leading to system slowdowns, crashes, or freezing. An extension’s perceived benefits may attract users, but they end up unwittingly sacrificing performance.


Mitigating the Risks: Best Practices for Browser Extension Security

1. Stick to Official Marketplaces

Download extensions only from official browser marketplaces, such as those connected with the browser developer (Google, Microsoft, etc.). These platforms have stringent security measures in place, reducing the likelihood of encountering malicious software.


2. Review Permissions Carefully

Before installing any extension, carefully review the permissions it requests. Be cautious if an extension seeks access to unusual data, such as data that seems unrelated to its core functionality. Limit permissions to only what is essential for the extension’s intended purpose.


3. Keep Browser Extensions Updated

Regularly update your browser extensions. This ensures you have the latest security patches. Developers release updates to address vulnerabilities and enhance security. If an extension is no longer receiving updates, consider finding an alternative.


4. Limit the Number of Extensions

Installing several extensions for various functionalities is tempting, but each added extension increases the potential attack surface. Only install genuinely needed extensions and regularly review and uninstall those no longer in use.


5. Use Security Software

Use reputable antivirus and anti-malware software to add an extra layer of protection against malicious extensions. These tools can detect and remove threats that may bypass browser security.


6. Educate Yourself

Stay informed about the potential risks associated with browser extensions, understand the permissions you grant, and be aware of the types of threats that can arise from malicious software. Education is a powerful tool in mitigating security risks.


7. Report Suspicious Extensions

If you encounter a suspicious extension, report it. You should report it to the official browser extension marketplace and your IT team. This proactive step helps browser developers take prompt action, protecting users from potential threats.


8. Regularly Audit Your Extensions

Conduct regular audits of the extensions installed on your browser. Remove any that are unnecessary or pose potential security risks to maintain a lean and secure browsing environment – this is a key aspect of online security.


Contact Us for Help with Online Cybersecurity

Browser extensions are just one way you or your employees can put a network at risk. Online security is multi-layered, including protections from phishing, endpoint threats, and more.

Don’t stay in the dark about your defences. We can assess your cybersecurity measures and provide proactive steps for better protection!

Give us a call today to schedule a chat.




Article used with permission from The Technology Press.

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