Prompt Optimizer - SecondBrain

Prompt Optimizer - SecondBrain

ID: aajjgdpofhhcjmjoombjdfepplndhgcp

Extension Info & Metadata

Status
Active
Version
2.1.0
Size
0.21 MB
Rating
3.9/5
Reviews
188
Users
100,000
Type
Extension
Updated
May 30, 2026
Category
Tools
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes

Publisher Contextual Analysis

Trusted
Author
secondbrain.isView Profile
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Total Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Total Users
100,000
Screenshot 1
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Gemini™ for Chrome is an AI companion that enables quick access to Gemini™ Chatbot- anywhere & anytime!

The Google Gemini Chrome extension is designed to enhance productivity by integrating Google's powerful Gemini AI Chatbot directly into your browser experience. This innovative tool ensures that users can access intelligent assistance without disrupting their workflow, providing a smooth, efficient, and distraction-free browsing experience. What is Google Gemini Chrome Extension? In today's fast-paced digital environment, efficiency and seamless multitasking are paramount. The Google Gemini Chrome Extension is a cutting-edge browser tool that allows users to engage with Google’s Gemini AI Chatbot right from their browser sidebar. This extension is ideal for those who require quick answers and insights while working on the web. It eliminates the need to switch between tabs or windows, thereby maintaining your concentration and workflow continuity. Please note: Gemini™ is a trademark of Google Inc, and this extension is neither endorsed, nor developed by Google Inc. Our extension is just a sidebar Chrome extension that aims to further extend Google Gemini™'s core capabilities & use cases, using various browser integration APIs provided by the CWS developers' documentation. How it works: Google Gemini operates through a simple yet effective mechanism. Once installed, the extension adds a floating quick access icon and can be activated using the 'Alt + G' keyboard shortcut. This accessibility ensures that Gemini's AI-powered capabilities are just a keystroke away, ready to assist with information retrieval, content suggestions, and much more, all without leaving your current browser tab or window. How to use: Using Google Gemini browser extension is pretty straightforward. Install the extension by clicking on "Add to Chrome" button. Once installed, you will see a small floating icon on bottom right side of your screen. Use this icon or press 'Alt + G' to open the Gemini AI in the sidebar. Begin interacting with Gemini as you would with any chatbot, typing in queries and receiving responses immediately. Key features: Seamless integration: Adds a responsive AI chatbot into your browser's sidebar for easy access. Quick access icon: Ensures Gemini is always one click or shortcut away, minimizing disruptions. Effortless multitasking: Allows users to consult Gemini without leaving the webpage & browser tab they are on, facilitating better focus and productivity. Key benefits: Increased productivity: By reducing the need for context switching, Google Gemini helps maintain your mental flow, allowing you to stay engaged and productive. Instant information retrieval: Get answers and solutions instantly without interrupting your work rhythm. Enhanced workflow: Integrates searching & prompting into your daily tasks seamlessly, making it easier to maintain pace and momentum. Who is This For? The Google Gemini Chrome extension is perfect for: - Professionals who need to optimize their work flow, and reduce disruptions. - Students who need quick access to information without breaking their study flow. - Researchers who heavily depend on AI chatbots and search engines for data gathering, research, and deep dives. - Any user who values productivity, enhanced browsing experience and efficient multitasking in their day-to-day internet usage. The Google Gemini Chrome extension is more than just a tool; it is a modern solution for the multitasking internet user, offering a blend of convenience, efficiency, and intelligent browsing. By integrating seamlessly with your daily tasks, it ensures that your productivity is never compromised. Whether for professional use, academic research, or just casual browsing, Google Gemini enhances your online experience while keeping you in the state of flow! Experience a smarter way to browse the internet, with Google Gemini Chrome extension!

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
https://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
Dangerous Permission Combination: background,webRequest,storage
Risk Factor
High
Enables extensions to operate in the background, intercept web requests, and manage privacy settings and browsing data, facilitating concealed actions and potentially undetected modifications.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
background
Permission
Medium
This permission allows continuous background operation. Rated Medium because it can perform actions without user awareness, consume system resources, and maintain persistent connections.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
sidePanel
Permission
Low
This permission adds custom panels to the browser interface. Rated Low because it only affects browser UI elements and cannot access page content.

The extension unconditionally overwrites storage defaults to 'agreed' consent and 'on' LDP status, bypassing any user consent popup. This ensures data collection is always active without genuine user approval.

extension/shared/ldp-defaults.js (Line 1)
const LDP_DEFAULTS = {  CONSENT_STATE: "agreed",  LDP_ACTIVE_STATUS: "on",  LLM_DATA_PROTECTION_STATUS: "off"};...function installLdpStorageDefaults() {  ...  storage.get = function getWithLdpDefaults(keys, callback) {    ...    return applyLdpDefaults(items, keys);  };}function writeLdpStorageDefaults() {  chrome.storage.local.set(LDP_DEFAULTS)...}

Encrypted chat messages (prompts and AI responses) are sent to the external server /context endpoint without the user's knowledge, as the CWS listing declares no data collection.

service.js (Line 1210)
async function flushContextCaptureBatch(options = {}) {  ...  const {    response,    body  } = await postJson("/context", {    items: requestItems  }, {    retryAuth: false  });  ...}

The extension fetches external configuration files (collector-config.json, sdk-ldp-config.json) that control which network requests are intercepted and how data is extracted. This allows remote updates to data collection without an extension update.

service.js (Line 1440)
async function getRemoteConfigWithCache(storageKey, path, inFlightPromise, setInFlightPromise) {  ...  const response = await fetch(`${apiBase}${path}`, {    method: "GET",    cache: "no-store",    credentials: "omit"  });  ...  await chrome.storage.local.set({    [storageKey]: {      data,      fetchedAt: now,      expiresAt: now + ttlMs    }  });  ...}

The extension includes a panalytics-style tracking library that generates user IDs, stores them in cookies, localStorage, and cache. This is not disclosed in the CWS listing and is unrelated to the stated prompt optimization functionality.

ldp-service.js (Line 179)
class LDPExternalAppUtility {  constructor() {    this.ExternalAppUtility = new i({      host: e.LDPConfig.O,      logging: !1    });  }  requestExternalAppId(u) {    this.ExternalAppUtility && (this.onGotId = u, this.ExternalAppUtility.U(u => {      u?.length && (this.externalAppId = u, this.onGotId && this.onGotId(this.externalAppId));    }));  }}

By severity

Critical2
High1
Medium1
Low0

Versions scanned

Showing 1 of 8 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension VersionCode Review Findings
2.1.04

Files with findings

3 distinct paths — top paths by unique finding count:

  • service.js2
  • extension/shared/ldp-defaults.js1
  • ldp-service.js1
S.No.
Category
Severity
File
Summary
Found in Version
1Data Exfiltration
critical
service.js (line 1210)Encrypted chat messages (prompts and AI responses) are sent to the external server /context endpoint without the user's knowledge, as the CWS listing declares no data collection.
2Unauthorized Data Collection
critical
extension/shared/ldp-defaults.js (line 1)The extension unconditionally overwrites storage defaults to 'agreed' consent and 'on' LDP status, bypassing any user consent popup. This ensures data collection is always active without genuine user approval.
3Remote Code Loading
high
service.js (line 1440)The extension fetches external configuration files (collector-config.json, sdk-ldp-config.json) that control which network requests are intercepted and how data is extracted. This allows remote updates to data collect…
4Tracking
medium
ldp-service.js (line 179)The extension includes a panalytics-style tracking library that generates user IDs, stores them in cookies, localStorage, and cache. This is not disclosed in the CWS listing and is unrelated to the stated prompt optim…
URLs
3
IPv4
0
IPv6
0

URLs

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secondbrain.is-https://secondbrain.is
chatgpt.com/*https://chatgpt.com/*
*.chatgpt.com/*https://*.chatgpt.com/*

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Code Diff

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