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

Live Stream Downloader
Chandler Stimson
CleanDownloads detected HLS/M3U8 streams from the active tab as a single local file.

Location Guard
Kostas Chatzikokolakis
LowLocation Guard ships a hardcoded third-party geocoding API key in its extension bundle.

LibKey Nomad
Third Iron LLC
LowLibKey Nomad assigns a persistent device UUID and transmits it alongside browser details to a.thirdiron.com on every article interaction.

Link Gopher
Andrew Ziem
CleanExtracts links from a web page and displays a sorted, deduplicated list in a new tab.

Lock Adblock
Lock
HighLock Adblock injects a hidden iframe pointing to loader.media into every page visited, starting four hours after installation.

Linguist - web pages translator
Robert Vitonsky
CleanTranslates web pages, selected text, subtitles, and entered text across many languages.

Locoloader
Locoloader
CleanAdds direct and bulk download features for Locoloader-supported websites.

Livemarks
Tim Nguyen
CleanCreates auto-updated RSS bookmark folders for feed items.

Lightning Autofill
tohodo.com
MediumLightning Autofill fetches encrypted JavaScript from its servers and executes it on all pages for premium users.
Legacy Smartbar
AODocs
CleanAdds AODocs document management tools inside Google Drive for licensed Google Workspace users.
LKTips
Lakshan Jayasinghe
CleanShows Sinhala meanings for English words while you browse.
Label Sheets - Print labels and stickers at home
ecardify-extension · Workflow & Planning
CleanPrint label and sticker designs from your browser using common label sheet templates.
Laitis
Mikolaitis
LowLaitis Browser Extension relays commands from a local native app to inject scripts, proxy HTTP requests, and read content from any web page.
Landmarks
Matthew Tylee Atkinson · Accessibility
CleanNavigate webpage landmark regions with keyboard shortcuts or a pop-up menu.
Leads Generator on Google Maps & Email Scraper
CleanLeads Generator on Google Maps & Email Scraper sends Google Maps search responses and place IDs to orange.scrapejob.net.
LeetCode Timer
Bhanu Prakash
MediumLeetCode Timer sends LeetCode submission code and timing details to codelytics.app after submission checks.
Leetify for Codeforces
MediumLeetify for Codeforces accepts a login session token from any page loaded on localhost:3000, not just its own site.
Lensify Zoom Magnifying Glass
Lensify
CleanAdds a magnifying glass for zooming in on webpage details.
Letras.mus.br
chromewebstore@studiosol.com.br
CleanThis extension shows lyrics and translations for supported music pages with one click.
LiChess Tools, by Siderite
Siderite
CleanLiChess Tools uploads pasted or dropped Lichess inbox and profile images to api.imgbb.com for hosted image links.
Libron
Tsukurusha, LLC
CleanAmazon pages show whether nearby libraries have the book available.
LightCast Sender
Splashtop Inc.
CleanLightCast Sender captures desktop or browser tab video and streams it to a remote receiver via Splashtop relay infrastructure.
Liner. The Real Ruler
isdenya
CleanAdds Photoshop-style guide rulers to webpages for visual alignment.
Lingvanex
NordicWise LLC · Workflow & Planning
LowLingvanex sends the user's plaintext email address to PostHog analytics on every account login.
LinkSmart
Free Download
CleanLinkSmart replaces matching Google search-page words with affiliate links from rules downloaded from api.linksmart.space.
LinuxDo Scripts
anghunk
LowLinuxDo Scripts sends linux.do forum content to user-configured AI API endpoints and backs up settings to a user-configured WebDAV server.
Live Transcript Extension
Lakebrains Technologies
MediumLive Transcript Extension includes hardcoded Symbl.ai credentials used to request speech API tokens.
LiveHosts
Aioros
CleanRedirects selected hostnames to chosen IP addresses for web development testing.
Livewire devtools
rw4lll
CleanLivewire devtools captures Livewire page component state for display in its DevTools panel.
LoadConnect
LoadConnect
CleanLoadConnect sends load-board contact actions with load details and contact metadata to Carrierify analytics.
Local Image File Viewer
Sam Larison · Art & Design
CleanBrowse previous and next images from a local file URL in the same directory.
Localhost Open Graph Checker
sat
CleanLocalhost Open Graph Checker sends the active tab's head HTML to local-ogp.firebaseapp.com when clicked.
Locator Labs — Smart Locator Generator
Naveen Automation Labs · Developer Tools
CleanGenerates test automation locators and page objects from inspected web page elements.
Lock Tab
gabomaldi
CleanAdds a padlock control to lock tabs and prompt before closing them.
Lofi Girl
Lofi Girl · Education
LowLofi Girl contacts geolocation-db.com from its popup to infer the user's country on first open.
LogMeOnce
LogMeOnce · Privacy & Security
CleanLogMeOnce captures webcam images and geolocation during login events and transmits them to its servers.
Logalty ClickOnce
Logalty Prueba por Interposición, S.L.
CleanLogalty ClickOnce bundles a Windows executable and intercepts all HTTP/HTTPS navigations to detect and redirect ClickOnce application URLs.
Login Online
Easy Login
CleanLogin Online sends typed new-tab search terms to loginonline.co autosuggest endpoints.
Lorem Ipsum Generator
lukehaas · Developer Tools
CleanGenerates lorem ipsum text with saved preferred settings.
Lotus - A Personalized Productivity Workspace
FIRE ARC TECHNOLOGIES LTD
CleanLotus - Your Daily Focus New Tab sends new-tab search queries and onboarding names to Mixpanel analytics.
Lovable Project Downloader
Chiheb Nabil
CleanLovable Project Downloader reads Lovable session JWT cookies and uses them to download project source files.
Lovart Clipper - Collect Web Inspiration
lovart
CleanLovart Clipper reads your lovart.ai login cookies and uses them to upload clipped images to Lovart's servers.
Lumina Night Mode
Rafael Ward
LowLumina Night Mode fetches cross-origin stylesheets and places their contents into page-readable DOM.
Lyrics ( Youtube / Youtube Music )
행복한 개발자이고 싶다.
MediumLyrics ( Youtube / Youtube Music ) inserts lyrics.co.kr responses as HTML into YouTube pages.
linkding extension
Sascha Ißbrücker
Cleanlinkding extension sends active-tab URLs to the configured Linkding server when optional precache is enabled.

Lecture Carte Vitale
GIE SESAM-Vitale pour l'Assurance Maladie
CleanConnects supported health websites to a local Carte Vitale reading component in the browser.
LEO Wörterbuchsuche
Ramiro Gómez
CleanSearch selected words in LEO online dictionaries from the browser context menu.
LOOT.Farm helper
LOOTFarm
CleanHelps verify LOOT.Farm-related Steam trade offers and manage LOOT.Farm trading notifications.
Ladders Apply4Me
Ladders, Inc.
CleanLadders Apply4Me sends job URLs and titles to The Ladders when you use its Apply4Me buttons.
Language Reactor transformed: fueled by AI
FunFluen · Entertainment
CriticalLanguage Reactor transformed captures a ChatGPT bearer token and sends it to appforlanguage.com during AI prompt generation.
Lasso - Annotate & Collaborate on Any Website with Screenshots🪄
Lasso
LowLasso lets any web page trigger its injected bridge to open a supplied HTTP(S) URL in a new active tab.
Learn languages with Netflix & YouTube
English In Games (mobile apps eLang.app) · Communication
CleanLearn languages with Netflix & YouTube sends selected page text to easy4learn.com for translation.
Leetcode Explained
zjdevelops · Education
CleanLeetcode Explained sends LeetCode problem text and editor code to OpenAI when you ask it to analyze or fix code.
Lessonly Recording
Lessonly by Seismic
LowLessonly Recording exposes its installed status to every page through a DOM marker and window message.
Library Detector
library-detector-for-chrome
CleanDetects JavaScript libraries used on webpages and shows matching library icons in the address bar.
Light Tab
lighttab.me · Tools
CleanLight Tab sends new-tab search queries to search.lighttab.me with stored user and campaign identifiers.
Lilo And Stitch Wallpaper
jefferyyap
MediumLilo And Stitch Wallpaper reads your top visited sites on each new tab and sends their URLs to Google's favicon service.
Lionel Messi Wallpapers HD 4K
Gameograf · Fun
CleanLionel Messi Wallpapers HD 4K loads notification HTML from api.gameograf.com into its new tab page.
List Highlighter for Trello
Mark Kenny · Workflow & Planning
CleanChanges Trello list background colors to help important lists stand out.
List Perfectly Multi-Channel
listperfectly
CleanList Perfectly Multi-Channel rewrites marketplace request headers and relaxes CORS on matching listing and image requests.