Browser Extension: Install and Troubleshoot

    Setup Guide

    Install the LinkedIn extension, sign in, fix sync issues, and verify monitoring.

    By Sebastian StreiffertPublished Jan 10, 2026Updated May 29, 20265 min read

    What the extension does

    The Lumenbase browser extension (Chrome and Brave) is a persistent bridge between the places you work — LinkedIn and video calls — and your CRM. It runs quietly while you use those sites and pipes what matters directly into Lumenbase, without manual data entry or copy-paste.

    There are three capability pillars:

    LinkedIn Sync

    Messages and conversations captured in real time as you use LinkedIn. Known contacts are highlighted on profile pages and in search results.

    Meeting Recording

    One-click recording on Google Meet, Zoom, and Teams. Generates a transcript and links it to the relevant calendar event and CRM contacts.

    Profile Capture

    Adds LinkedIn profiles to Lumenbase as contacts — including prospects you're not yet connected with — via a Subscribe button that appears directly on LinkedIn.

    Install and connect

    1

    Install from Lumenbase

    Go to My Settings → Integrations → LinkedIn. Click the Chrome Web Store link to install the extension, then pin it to your browser toolbar so it's always reachable.
    2

    Sign in with your Lumenbase account

    Click the extension icon in your toolbar and sign in with the same account you use in the Lumenbase app. No separate credentials needed — it uses a secure token from your active session.
    3

    Grant site access to linkedin.com

    When prompted, allow the extension to access linkedin.com. This is required for profile highlights and message capture.
    4

    Verify the connection

    Open the extension popup. The Menu tab should show three green status rows: CRM Authenticated, Background Worker Active, and LinkedIn Session Active. Use the mockup below to explore all three tabs before using the real extension.
    Extension popup — click the tabs to explore each feature area
    LB

    Lumenbase

    Acme Corp

    Connected
    CRM AuthenticatedActive
    Background WorkerActive
    LinkedIn SessionActive

    Sync

    Synced from CRM
    284 contacts8m ago
    Synced to CRM
    12 convos3 messages

    Network

    284

    Contacts

    12

    Today

    1,429

    Network

    • 1
      Menu tab: Connection status, sync statistics, and network size at a glance
    • 2
      LinkedIn tab: Per-feature sync counters and a manual sync trigger for LinkedIn data
    • 3
      Meetings tab: Detected meeting name, Start Recording button, microphone and language settings

    LinkedIn sync and profile capture

    When you're on LinkedIn, the extension scans the page for contacts already in your CRM and marks them with a small Lumenbase badge. LinkedIn direct messages are captured as they arrive and sent into your contacts' activity timelines automatically.

    • Profile highlights: A colored badge and "In Lumenbase" label appear next to names of existing CRM contacts, on profile pages, search results, and messaging threads.
    • Message sync: LinkedIn DMs flow into the contact's activity timeline in Lumenbase while you have a LinkedIn tab open. No separate action required.
    • Subscribe to prospects: A "Subscribe" button appears next to profiles not yet in your CRM. Subscribing captures their profile data in Directory → Added Profiles.
    • My Connections: Your full LinkedIn network syncs to Directory → My Connections for browsing and linking to CRM records.
    Full guide — profile highlights, message sync, Added Profiles, My Connections, and LinkedIn Monitor: LinkedIn Sync & Profile Capture.

    Meeting recording

    Open the extension popup when you're in a Google Meet, Zoom, or Teams call and the Meetings tab shows the detected meeting name and a Start Recording button. One click records tab audio and your microphone, posts a consent notice to the meeting chat, and generates a searchable transcript after you stop.

    • Platforms: Google Meet, Microsoft Teams, Zoom.
    • Keyboard shortcuts: Alt+Shift+P to pause, Alt+Shift+E to stop.
    • Consent: A notice is automatically posted to the meeting chat when recording starts.
    • Auto-record: Turn this on in the popup to start recording automatically when you join a calendar-linked meeting.
    • After the call: Transcripts appear under Meeting Transcripts in Lumenbase and on the timelines of related contacts.
    Full setup guide, auto-record options, transcript access, and troubleshooting: Meeting Recording.

    How it all flows into Lumenbase

    Every LinkedIn message and meeting transcript ends up on the activity timeline of the relevant contact. A salesperson looking at a contact card sees their LinkedIn DMs alongside meeting transcript excerpts — full relationship context without switching apps.

    Lumenbase — contact activity timeline showing synced LinkedIn messages and a meeting transcript
    SC

    Sarah Chen

    VP Sales · Northwind Systems

    Active Deal
    Connected

    Recent Activity

    LinkedIn Message (received)

    2h ago

    "Thanks for following up! I reviewed the proposal and had a few questions about the enterprise tier pricing..."

    LinkedIn Message (sent)

    2d ago

    "Hi Sarah, following up on our Q2 pipeline discussion. Would you have 20 minutes next week..."

    Meeting — Q2 Planning Session

    1w ago

    Google Meet · 47 min · "...pricing structure, Sarah mentioned they need SSO before legal can sign off..."

    Troubleshooting

    Extension not detected

    • Confirm the extension is enabled in chrome://extensions (it must not be disabled or removed).
    • Use Chrome or Brave — other browsers are not supported.
    • Sign out of the extension popup and sign back in.
    • Reload both the LinkedIn tab and the Lumenbase tab.

    LinkedIn messages not appearing

    • Check that LinkedIn integration is connected: My Settings → Integrations → LinkedIn.
    • Sync only runs while LinkedIn is open in a tab — it is not a background service.
    • Contacts must have a LinkedIn URL in Lumenbase for messages to match to them.

    Recording won't start

    • Make sure you are in an active meeting, not a waiting room or lobby.
    • Confirm microphone access was granted in the browser permissions dialog.
    • Check that meeting capture is enabled in the popup Meetings tab settings.
    Per-feature troubleshooting is covered in the dedicated sub-articles: LinkedIn Sync and Meeting Recording.
    Install: My Settings → Integrations → LinkedIn
    Supported browsers: Chrome, Brave
    LinkedIn sync guide: Article: LinkedIn Sync & Profile Capture
    Meeting recording guide: Article: Meeting Recording
    Monitor (activity feed): Labs → LinkedIn Monitor
    Transcripts: Lumenbase → Meeting Transcripts

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