Focus Productivity Booste

The extension uses innerHTML to dynamically insert HTML into web pages. While common in many extensions, this can be risky if not properly sanitized.

Technical: Code pattern involves direct assignment of user-generated or fetched content to element.innerHTML. This is a known XSS vector unless strict sanitization occurs before insertion. Could allow attackers to inject malicious scripts if input isn't validated.

💡 Common in extensions that dynamically render UI elements or display third-party data, often used for dashboards or widgets.

The extension uses obfuscated strings to hide potentially malicious code. This is a red flag that may indicate hidden functionality.

Technical: Code contains calls to String.fromCharCode() used for decoding strings, typically seen in obfuscation techniques. Could be hiding network communication or data exfiltration logic.

💡 Used by legitimate extensions to protect intellectual property or reduce string visibility during static analysis.

The extension has access to all websites, which means it can potentially read and modify content on any site you visit — including sensitive ones like banking or email.

Technical: Permission <all_urls> allows unrestricted access to every domain. This is excessive for a productivity tool that only needs to block certain sites. It increases the attack surface significantly if compromised, enabling full browsing surveillance.

💡 Only necessary in extensions that operate across many domains (e.g., ad blockers or password managers).

The extension can block or alter network requests, which is a powerful capability that could be misused to interfere with site functionality or track user behavior.

Technical: Uses declarativeNetRequest API to modify or block traffic. If misconfigured or exploited, this allows the extension to silently prevent access to certain sites or inject content into pages without user consent.

💡 Standard in ad blockers and security tools that filter malicious domains or enforce parental controls.

The extension communicates with other origins using postMessage, which is normal for browser extensions but can be misused if not handled carefully.

Technical: Uses window.postMessage() to communicate between contexts (e.g., content scripts and background). If not secured properly, this could allow unauthorized parties to send messages or extract data from the extension’s context.

💡 Standard for inter-extension communication or embedding external components in web pages.

The extension does not implement a strict Content Security Policy (CSP), which helps prevent cross-site scripting attacks on injected content.

Technical: No CSP header is set in the manifest or background script, increasing risk of XSS if HTML/JS is dynamically inserted into pages. This makes it easier for attackers to inject malicious code through vulnerable injection points like innerHTML.

💡 CSP is recommended but not always enforced by all extensions; however, its absence raises security concerns in an extension with broad access rights.