Chrome Extension for automated CRM lead extraction
A Manifest V3 browser extension that lets sales representatives clip prospect contacts from web directories directly into their CRM with a single click.
Prospect Directory
The Challenge
Sales representatives spent hours copying prospect details from directory tables, search pages, and corporate databases, manually pasting them into their GoHighLevel and custom CRMs. The manual process was error-prone and severely limited outbound prospecting speeds.
- Hundreds of hours spent weekly on repetitive copy-paste data entry tasks.
- Human transcription errors leading to broken phone numbers and invalid email addresses in CRM.
- No duplicate validation, causing duplicate lead profiles and overlapping team outreach.
Operations Bottleneck
Manual parsing overhead copy-pasting tables.
Infrastructure Solved
Automated selector injection for fast clips.
The Solution
We developed a Manifest V3 compliant Google Chrome browser extension. The extension scans directory tables via content injection scripts, parses contact details, and triggers serverless webhook APIs to ingest contacts directly into GHL Pipelines.
- One-click lead scraping directly from directory tables and social profiles.
- Resilient CSS selector parsing to automatically extract name, company, email, and phone info.
- Real-time CRM lookup to check for duplicate entries before saving new pipeline leads.
Our Approach
Discovery & DOM Mapping
Mapped CSS structures across diverse directory domains to design dynamic parser rules.
Manifest V3 Setup
Structured the service worker background scripts and isolated content scripts.
API Gateway Design
Built a lightweight serverless middleware to proxy requests and keep CRM secrets secure.
Sidebar UI Layout
Developed a collapsible sliding drawer interface that doesn't obstruct target web page UI.
Duplicate Validation
Integrated live CRM lookup endpoints to alert sales reps if a lead already exists.
Staged Rollout & Feedback
Distributed a private extension build to a pilot team, refining parsing rules based on usage.
User Journeys
Sales Representative
Sales Administrator
Tech Stack
Frontend
- HTML5
- CSS3
- JavaScript
Extension APIs
- Manifest V3
- Service Workers
- declarativeNetRequest
Backend Integrations
- GoHighLevel API
- Serverless webhooks
DevOps & CI/CD
- GitHub Actions
- Vercel serverless
Development Process
Robust DOM Selectors
Wrote fallback selectors to handle dynamic class names and table structures typical of directories.
Manifest V3 Compliance
Utilized declarativeNetRequest and background service workers to ensure standard web store guidelines.
Webhook Proxy Layer
Ensured client keys are not exposed inside browser package files by proxying through serverless routes.
Performance & Latency
Optimized payload weight to ensure one-click CRM updates complete in under 350 milliseconds.
Results & Impact
Measurable efficiency gains, reduced operations costs, and reliable integrations delivered.
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