MoltSets Chrome Extension: How MoltSets for LinkedIn Works

The MoltSets Chrome extension, called MoltSets for LinkedIn, adds a side panel to LinkedIn profiles where you click Get to pull a business email, a US personal email, a carrier-verified mobile or a full business profile. The extension is free, lookups draw on your MoltSets plan, and you can save contacts to lists, download CSV files or send them to HubSpot, Attio, Salesforce or a webhook. It launched in October 2026 on Chrome and Firefox and has no public store ratings yet.

Some tool links here are affiliate links (disclosure). For the full product, including pricing, the API and the MCP server, read our MoltSets review. To try the extension you need a MoltSets account and an API key.

We have not installed or tested the extension. Everything below comes from MoltSets' extension page, changelog and Chrome Web Store listing, checked November 9, 2026, and we describe only behavior MoltSets documents.

MoltSets extension at a glance

Best for: reps and founders who research prospects one profile at a time on LinkedIn and want graded emails in a list or CRM. Not ideal for: bulk list building from searches; MoltSets' extension page documents profile-by-profile lookups, not search-page exports.

Why the extension matters for MoltSets

MoltSets is an API and MCP data product. Its FAQ says there is "no dashboard to log into," and its own blog says it is a poor fit for teams that need a UI to build lists.

The extension is the closest thing MoltSets has to a point-and-click tool. If you never want to touch a terminal or an AI agent, this is where you would work day to day. For bigger lists, the CLI and API are still the main routes.

How to install the MoltSets Chrome extension

MoltSets documents four steps:

1. Add MoltSets for LinkedIn from the Chrome Web Store (or Firefox Add-ons).
2. Open the side panel and paste your MoltSets API key, or sign up for free from the panel.
3. Open a LinkedIn profile, choose a lookup and click Get.
4. Save the contact to a list, download a CSV, or send it to a connected tool.

You need Google Chrome 116 or later. If you do not have a key yet, create a free MoltSets account first, then create a key under API keys in the app. Keys start with ms_.

What the side panel does

The side panel stays open as you move between LinkedIn profiles. MoltSets says it saves everything you enrich, so returning to a profile shows the data you already pulled, and reopening a profile you enriched is free.

The four lookups

You choose a lookup type and click Get. MoltSets says results appear in seconds and nothing is sent to MoltSets until you click.

What the risk score means

Each business email comes with a grade. MoltSets' risk score docs say A means validated deliverable, B means known engagement, C means catch-all, D means do not send (spam trap, abuse, do-not-mail or a recent complaint) and F means no signal.

The extension page adds one safety rule: "Emails graded D are never sent to Attio or your webhooks." That is a useful guard if you route contacts straight into automations.

Mobile numbers in the extension

Mobile lookups need a paid plan plus a phone token subscription. Tokens cost $0.15 each as of November 2026, and MoltSets says it does not return Do Not Call status with a number. Our MoltSets mobile numbers guide covers token tiers, rollover and your compliance duties before you call or text.

Lists and CSV downloads

MoltSets says you can create as many lists as you need, for example by campaign, territory, account or role. A contact can sit on several lists, you can search within a list, and you can download or send a whole list at once.

Two details are worth knowing:

• Lists live in your browser. MoltSets says lists stay in your browser and use no tokens. Deleting a list does not delete its contacts.
• CSV is flexible. You can download one contact, a selection, a list or everyone, and MoltSets says the files open cleanly in Excel and Google Sheets.

Because lists are stored in the browser, think about what happens if you switch computers or clear browser data. MoltSets does not describe a cloud sync for lists, so download a CSV of anything you care about.

Getting extension contacts into a sequencer

MoltSets does not list Instantly, Smartlead, PlusVibe or lemlist as integrations. The documented route is a CSV download from a list, then a CSV import in your sequencer. Our MoltSets to Instantly workflow shows how to filter by risk grade and map the columns in Instantly, Smartlead and PlusVibe.

Sending to CRMs, Clay and webhooks

MoltSets' extension page lists these destinations:

MoltSets says "Sends go straight from your browser to the tool, never through MoltSets, and never use tokens." So sending a contact you already enriched costs nothing extra.

Note that the extension sends to Clay, Make, n8n and Zapier, but MoltSets' integrations page does not confirm native MoltSets apps on Zapier, Make or n8n. A webhook trigger in those tools is the likely receiving end; test with one contact first.

What is free and what uses your plan

Your plan still has caps. MoltSets' "unlimited data" plans are bounded by rolling 5-hour and weekly windows, and the Solo plan ($27 per month) allows 5,000 enrichment records per week. The Free plan gives about 1,000 lifetime lookups with no card.

Our MoltSets pricing guide explains every plan and what "unlimited" really means. You can also compare MoltSets plans directly on its pricing page.

Privacy and data behavior

MoltSets makes specific privacy claims about the extension. As documented on its extension page:

• It reads only the address of your active LinkedIn tab.
• It never reads page content, writes to LinkedIn pages, injects scripts or runs automation.
• It sends data to MoltSets only when you click Get.
• Keys, saved results, lists and CRM tokens stay in your browser, encrypted with your passphrase.
• CRM and webhook sends go directly to your tools, not through MoltSets.
• It includes no analytics or advertising code.

The Chrome Web Store listing adds: "The extension never scrapes LinkedIn." MoltSets also notes that Chrome's permission prompt describes access to linkedin.com broadly, even though only the address is read.

Two caveats MoltSets itself raises or implies:

• LinkedIn limits still apply. MoltSets says LinkedIn can still restrict accounts that view a very high number of profiles, with or without the extension.
• Lookups are data processing. MoltSets' privacy policy lists browser extension lookups among its data sources, so check your own privacy notices if you prospect in regulated markets.

Early-stage store data

The extension is new, so judge it on documented behavior rather than reviews. Here is what the Chrome Web Store showed on November 9, 2026:

A 0.5.x version number and frequent updates point to a product still moving fast. MoltSets' changelog shows many pricing and feature changes between September and October 2026, so expect the extension to change too. We will update this page when ratings appear.

How it compares with other LinkedIn email extensions

Most data tools with a UI also ship a browser extension, so the extension alone is rarely the deciding factor. The bigger question is which data model you want behind it.

We are not ranking these on extension quality, since we did not test them side by side. Pick on data model, price and integrations, then try the extension on 20 known contacts.

Quick checklist before you start

• [ ] Chrome 116 or later, or Firefox
• [ ] A MoltSets account and an API key
• [ ] A paid plan and phone token subscription if you want mobiles
• [ ] A plan for D, C and F graded emails before you send anything
• [ ] Regular CSV downloads, since lists live in your browser
• [ ] A test send of one contact to each CRM or webhook you connect

Final take

The MoltSets Chrome extension gives an API-first product a simple LinkedIn side panel: click Get, see a graded email or mobile, save it to a list, and export or send it. The extension and its exports are free; only successful lookups use your plan. It is new, with no store ratings yet and no documented Sales Navigator support.

For the strengths and weaknesses of the data underneath, read the full MoltSets review. To try it, open a MoltSets account, install the extension and enrich 20 profiles you already know, then compare the results with your CRM. Our MoltSets review also covers when the CLI or MCP server is the better route for volume.

Rather not build the list yourself?

Nerdy Joe is owned by Agency Growth Partners (AGP). AGP builds verified lead lists and runs outbound for agencies, so your team does not have to research profiles one by one. If you would rather hand it off, book a call with David.

Sources

• MoltSets LinkedIn Chrome extension: https://moltsets.com/how-it-works/linkedin-chrome-extension/
• Chrome Web Store, MoltSets for LinkedIn: https://chromewebstore.google.com/detail/moltsets-linkedin-email-f/bfhhpbdldppenlgnebjfpabiiiocfahp
• MoltSets changelog: https://support.moltsets.com/en/articles/15424421-changelog
• MoltSets FAQ: https://moltsets.com/faq/
• MoltSets pricing: https://moltsets.com/pricing/
• MoltSets mobile numbers pricing: https://moltsets.com/pricing/mobile-numbers/
• MoltSets email risk scores: https://developer.moltsets.com/moltsets-data/email-risk-scores
• MoltSets rate limits docs: https://developer.moltsets.com/getting-started/rate-limits
• MoltSets integrations: https://moltsets.com/how-it-works/integrations/
• MoltSets privacy policy: https://moltsets.com/privacy-policy/
• MoltSets blog, Best B2B data enrichment APIs: https://moltsets.com/blog/best-b2b-data-enrichment-apis/
• Findymail pricing: https://www.findymail.com/pricing/