Browser extensions starting with L
654 browser extension security reviews, listed by name.

Local Media Player
Big Developer
LowLocal Media Player sets chromecrxstore.com as the default search provider and opens a web player on click.
LinkMatch for Zoho Bigin
Yuriy Yazlovytskyy
MediumLinkMatch for Zoho Bigin sends LinkedIn profile, inbox and search API responses to app2.linkmatch.com as you browse.
Lead Finder & Email Hunter
elkeqin
CleanLead Finder - Email Hunter scrapes email addresses off every page you visit and stores them locally.
LeadHERship Global
My Most Trusted Network · Social & Communication
LowLeadHERship Global reads LinkedIn profile contact details and sends them to mymosttrusted.net.
Lead Prospector
aimtools.ai
CleanLead Prospector sends names of Facebook users it scrapes to an AWS-hosted endpoint for gender and country classification.
LinkMatch for Insightly
Yuriy Yazlovytskyy
MediumLinkMatch for Insightly captures LinkedIn profile, messaging and search API responses and uploads them to app2.linkmatch.com.

LibreOffice writer online
RunApps
MediumLibreOffice writer online sends every page you navigate to, hex-encoded with a persistent ID, to www.runapps.org.
Lockcard - Vocabulary Builder from YouTube, Articles & AI
Yongfeng Chai · Education
MediumLockcard sends dictionary and translation requests to DeepSeek with a bundled API bearer token.

LoveDeals: AI-Powered Coupon Finder
LoveDeals: AI-Powered Coupon Finder
MediumLoveDeals silently opens a hidden background tab through its own affiliate link on merchant sites you visit organically.
Lighthouse
Harbour Technologies
HighLighthouse routes all of your browser's traffic through a hardcoded third-party proxy server via an unlabeled icon on every new tab.
LazyPublisher - Amazon KDP Reports Extension for Sales, Royalties and Ads
lazypublisher
CleanLazyPublisher uploads your Amazon KDP sales report files and linked account ids to lazypublisher.app.
Labubu Cursor
MizuFlux · Fun
LowLabubu Cursor accepts postMessage commands from any web page and fetches attacker-supplied URLs with the user's credentials.
LinkMatch for Greenhouse
Yuriy Yazlovytskyy
LowLinkMatch for Greenhouse pulls LinkedIn profile targets from its server and scrapes them in your logged-in session.

LibreOffice Calc online
RunApps
MediumLibreOffice Calc online sends the hex-encoded URL of every page you open, plus the previous URL, to www.runapps.org.
LittleBee
perrysong2023
CleanLittleBee adds a DevTools panel that captures analytics events from Xiaoman's sensors endpoint and uploads them to a Xiaoman test server.
LinkedIn Video Downloader
So Lets Talk Digital
MediumLinkedIn Video Downloader sends your signed-in Chrome profile email to app.soletstalkapp.com each time the popup opens.
LeśniewskiCRM Extension
piotrek.gorczyca
LowLeśniewskiCRM reports Copart and IAAI vehicle visits and bids to its CRM backend and autofills shared buyer logins.
Lighthouse
Harbour Technologies
MediumLighthouse's new-tab search box labelled Bing sends every query to the affiliate-tagged portal www.msearch.co.
ListCentral Extension
CleanListCentral scrapes vehicle listings and sends your account details to PostHog analytics.
Leetcode Video Solutions
CleanLeetcode Video Solutions sends the LeetCode problem slug to leetcodeanswers.com whenever you open a problem's solutions tab.
Link to Panel by NNT
technologynoname
LowLink to Panel by NNT removes framing and CSP headers from responses on every site you visit.

LibreOffice Draw online
RunApps
MediumLibreOffice Draw online sends the URL of every page you open, plus the previous URL, to www.runapps.org.

Lync
Haatch Interactive
LowLync lets any web page replace its stored login token and clear cookies for a backend-chosen site.
LinkMatch for Copper
Yuriy Yazlovytskyy
MediumLinkMatch for Copper copies LinkedIn profile, messaging and search API responses and uploads them to linkmatch.com.

LibreOffice Impress online
RunApps
MediumLibreOffice Impress online sends each page you visit, with the previous page, to runapps.org once a day.
Logiline | synchronizer
auctiongate.io
LowLogiline | synchronizer relays auction purchase data from car-auction sites to its CRM backend.
Lexchatbot
ext.user003
CleanLexchatbot uploads a WhatsApp voice message to hc-stt.hiperchat.com.br for transcription when the user clicks the transcribe button.

Llamada Web
Duocom Europe, S.L.
LowLlamada Web places phone calls through a Duocom account, and any web page can trigger a call via a message.

Lookup - Website Profiler
Lookup
LowLookup - Website Profiler sends the hostname of every page you load to joinlookup.com.
LedgerPilot Vault Autofill
kevin
CleanLedgerPilot Vault Autofill looks up vault credentials from api.getledgerpilot.com and fills them into login forms on named vendor sites.
Linked Leads, Linkedin Automation and CRM
chrome-webstore
MediumLeadGen Master
The Digitalify
LowLeadGen Master reads your WhatsApp phone number and Google account email and sends them to its own server on every WhatsApp Web load.
Level Up Messenger
Level Up 247
CleanLevel Up Messenger copies your Facebook friend list and Messenger history to its own servers.
LeadMagnet Plus
The Digitalify
MediumLeadMagnet Plus sends your WhatsApp number, profile name and Chrome email to wa-web-plus.web.app when WhatsApp Web loads.
LiberRPA Chrome Extension
Grit Hu
CleanLiberRPA connects to a local automation server and runs commands including reading and setting cookies on the active tab.
Liberty Dictionary & Funny Exercise
create.liberty.together
CleanLiberty Dictionary sends text you select on any page to my-liberty.ru and injects the returned HTML into the page.
Lucra Zap
wlsslwss
CleanLucra Zap adds WhatsApp Web tools and sends voice messages to hc-stt.hiperchat.com.br for transcription.
Lotics
Lotics
CleanLotics is an AI form-filling agent that drives your browser via Chrome's debugger protocol to read pages and enter data.
Lime Browser Bridge
CleanLime Browser Bridge sends the active tab's page text to a user-configured Lime server and accepts remote tab commands.
Local Panda
CleanLocal Panda sends tour listing details from supported travel sites to its own cloud function to find direct bookings.

LanzaVPN
ViProject Limited
CleanProvides free VPN connections with unlimited data and two server location choices.
LeadContact-Phone Number & Email Finder for LinkedIn
HighLearnPlatform for Students
LearnPlatform
CleanThis extension records general usage of LearnPlatform-listed education websites for school and district analysis.
Lego Builder
publish your design
CleanBuild Lego models online in Chrome or Firefox without an additional plugin.

LetsVPN
Letsgo Network Incorporated
CleanThis extension provides one-click VPN access with free trial and paid data plans.
Lime Browser Bridge
CleanLime Browser Bridge lets a user-configured Lime server read pages and run browser commands over WebSocket.
LinkLeadIn Notifier
So Lets Talk Digital
CleanLinkLeadIn Notifier sends your signed-in Chrome profile email to its vendor's server on every LinkedIn page load.
LockDown Browser
Respondus Inc
CleanLocks down online exam sessions in supported learning platforms.
LockDown Browser: AP Classroom Edition
Respondus Inc
CleanProvides a locked Chromebook testing environment for AP Classroom online assignments.
LockItDown Browser
MkSeven1
LowLockItDown Browser disables your other extensions and restricts browsing while an exam lockdown session is active.
LouRead
CleanLouRead sends the word and sentence you select to its own cloud service to fetch an AI-generated definition.
Loupe Collage
Loupe
CleanCreates photo collages in custom shapes from uploaded photos and supported online sources.
Lucidchart for Education
integrations-ops
CleanCreates and edits diagrams for school assignments and group projects in Lucidchart.
LuminaRad - Extensão
CleanLuminaRad sends radiology report text and patient name, age and sex to its own servers for AI error checking.