Browser extensions starting with S
1,299 browser extension security reviews, listed by name.
Sputnik
Mitchell Moser
CleanSputnik opens user-selected indicators on third-party OSINT reputation services.
SquarePage
SquareMedia
MediumSteam Workshop Downloader
mahmut.szn35
LowSteam Workshop Downloader rewrites the Steam subscribe button to open a cleartext steamworkshop.download URL.
Stencil
Anchor Labs Inc. · Art & Design
LowStencil sends the current page URL to its getstencil.com iframe when the app opens.
Sticker Mania
StickerMania · Fun
CleanSticker Mania injects Google Fonts links into every HTTP and HTTPS page, sending page URLs as referrers to Google.
StockGlow by Upstox: Live Stock Prices & Charts
Upstox
MediumStockGlow sends each visited page's domain and path plus stock-detection events to Mixpanel with a persistent extension ID.
Store Savior
bryce
CleanStore Savior redirects failed website loads to storesavior.com with the failed destination hostname.
Streak Mail Merge for Gmail
Streak CRM · Workflow & Planning
CleanStreak Mail Merge for Gmail identifies signed-in Gmail users to Userflow with profile and plan attributes.
StudyBuddy - Homework Solver
StudyBuddy Development Team
LowStudyBuddy - Homework Solver posts its extension runtime ID into every page it runs on.
StylerGPT
stylergpt.com · Tools
MediumStylerGPT for ChatGPT sends a keyed hash of the user's ChatGPT email to api.stylergpt.com for trial checks.
Subscribe RSS Feeds in Feedly
BrowserNative · News & Weather
CleanSubscribe RSS Feeds in Feedly sends selected feed URLs to feedly.com when you choose to subscribe.
Subtly
Skyeng · Fun
CleanSubtly sends selected page text to Skyeng, Yandex, and Google translation services.
Suggestion Shield
Suggestion Shield
LowSuggestion Shield sends address-bar search terms and suggestion prefixes to suggestionshield.com endpoints.
SummYT - YouTube Summarizer
Mathiesen Solutions · Tools
CleanSummYT - YouTube Summarizer sends selected YouTube video IDs and transcript lines to use.summyt.app.
Summary with ChatGPT
Dunkum Sherwin
MediumSuno Tracks Exporter
CleanSuno Tracks Exporter captures your Suno bearer token and reuses it to export tracks through Suno APIs.
Surfer for Google Docs and ChatGPT
Surfer
LowSurfer for Google Docs and ChatGPT removes ChatGPT's Content-Security-Policy header on main-page loads.
Svelte DevTools
ignatiusmb
CleanSvelte DevTools reads Svelte component state and DOM details from the inspected tab for local debugging.
Smarter RSS
holden321 · News & Weather
LowThe RSS Aggregator lets any website trigger extension-privileged requests to caller-supplied URLs.
Search
websearchextensionnow10
MediumWeb Search redirects default searches with a persistent extension GUID to search.websearchextension-api.info.
smrtPhone.io Chrome Dialer
SwiftPod.io
LowsmrtPhone.io Chrome Dialer lets any webpage trigger its click-to-call path for a page-supplied phone number.

Swift Selection Search
Daniel Lobo
LowSwift Selection Search rewrites page Content-Security-Policy headers to allow inline styles on HTTP(S) pages.

Search and New Tab by Yahoo
Yahoo!
LowSearch and New Tab by Yahoo sends destination URLs and a persistent tracking token to geo.yahoo.com on every new-tab link click.
SADocumentExtension
SmartAdvocate
LowSADocumentExtension relays arbitrary CustomEvent payloads from any web page to the native host sa.document.extension with no filtering.
SIU Library
Eclat Engineering Pvt. Ltd.
LowSIU Library collects search terms and subscribed e-resource browsing URLs for MyLOFT analytics.
Safe Web
George Zotos
CleanSafe Web sends each visited page hostname to Extendbrowser and SafeDNS categorization services.
Salesforce Log Inspector
nisarahmad.ajmer@gmail.com · Developer Tools
CleanSalesforce Log Inspector reads your Salesforce sid cookie to fetch selected Apex debug logs from Salesforce.
Save Emails to Dropbox by cloudHQ
cloudHQ
LowSave Emails to Dropbox by cloudHQ sends Gmail account-switcher email addresses to cloudHQ during its pre-user check.
Save to Koofr
Koofr
CleanSave to Koofr uploads selected text, screenshots, and page images to Koofr when the user triggers its menu or shortcuts.
SecondSub
Quickka · Education
HighSeismic
Seismic
LowSeismic sends visited page URLs to integrations.knowledge.seismic.com when knowledge triggers are enabled.
Sell The Trend - Winning Product Dropshipping
sellthetrend.com · Workflow & Planning
MediumSell The Trend sends detected Shopify store hostnames and Facebook ad metadata to SellTheTrend services.
Seller Price & Coupon Monitor
aiprice3 · Shopping
CleanTracks Temu price history, finds coupons, and compares similar products across shopping platforms.
Shopee Commission & Order Calculator
nhatkythuthuat
CleanShopee Commission & Order Calculator sends Shopee affiliate product offer API responses to AddLiveTag's data endpoint.
Safe Deal
Safe Deal · Shopping
LowShopping Assistant sends shopping page details to joinsafedeal.com and checks visited domains with reputation services.
SignalShield
RABITAI
CleanSignalShield opens its billing portal with the stored account bearer token in the URL.
Signitic
Communication
LowSignitic sends Gmail compose recipient addresses to hub.signitic.com when contact-list banners are enabled.
Similar Product Search on Temu
MossExt · Tools
CleanSimilar Product Search on Temu sends selected image URLs to thunt.ai when you use its image search menu.
Smart LG TV remote control
Roman Romanchenko
CleanSmart LG TV remote control sends selected page, link, or image URLs to the configured LG TV over WebSocket.
SparxSolver
Najm Ajmal
MediumSpeedTestClub Extension
MeetingHubZone.com
CleanSpeedTestClub Extension loads SpeedTestClub's remote new-tab page whenever you open a new tab.
SquarespaceWebsites Tools PRO
Taylor Miles
LowSquarespaceWebsites Tools PRO lets allowed Squarespace and Squarewebsites pages read cached site export data.
Star Wars Weather
Weston Software LLC · Fun
LowStar Wars Weather sends visited-site hostnames to Google and precise location to OpenWeather for new-tab features.
Stash
Commonplace Technology
LowStash lets localhost:3000 pages read open tabs, bookmarks, and stored Stash data through its message bridge.
Streamer Stats by Streams Charts
Streams Charts
LowTwitch Stats by Streams Charts embeds a signing secret used for its StreamsCharts API authorization tokens.
Strongbox AutoFill
Phoebe Code Limited
LowStrongbox AutoFill accepts postMessage commands from any web origin to fill credentials into forms or open new browser tabs.
Studio Designer Capture
Studio Designer
CleanStudio Designer Capture sends selected page text and images or screenshots to Studio Designer servers.
Suku Wallet
Suku Labs, Inc.
CleanSuku Wallet sends completed transaction details and the user's IP address to wallet-api.suku.network.
SuperStart New Tab Page
Amplebyte Studio · Functionality
CleanSuperStart New Tab Page sends user-initiated Cloud Sync page and settings data to its vendor API.
Superpowers for LinkedIn
Clemens Teichmann
CleanSuperpowers for LinkedIn reads LinkedIn page and API data to run user-selected mass connection and profile workflows.
shikicinema
Smarthard
Lowshikicinema exposes hardcoded Kodik, Shikimori, and Smarthard API credentials in a web-accessible bundle.

SimilarWeb - Website Traffic Sources and Ranking
SimilarWeb
CleanSimilarWeb - Website Traffic Sources and Ranking posts visited URLs and referrers to SimilarWeb when site rank is enabled.

Social Fixer
MattKruse
CleanSocial Fixer periodically retrieves Facebook friend-list metadata and saves it in extension storage.

Scholarscope
Scholarscope
CleanScholarscope sends PubMed search and article details plus saved notes, tags, and highlights to Scholarscope servers.
SAESPEED: Generador de horarios
CleanSAESPEED injects an automatic professor-evaluation form filler into IPN evaluation pages.
SEO-tools
SEO-zona
LowSEO-tools sends the active tab URL and domain to SEO, QR, WHOIS, and IP lookup services when its popup opens.
SUSCHEGG Unlocker
SusChegg
CleanSUSCHEGG Unlocker sends the supported-page URL to suschegg.com when you click its injected Unlock Solution button.
Sakuga Extended
Wevolve Team · Functionality
LowSakuga Extended runs JavaScript embedded in Sakugabooru comment script tags when post pages load.
Save ChatGPT to Notion
aluo · Tools
MediumSave ChatGPT to Notion sends failed Notion-save payloads and user identifiers to chatgpt2notion telemetry.
Screenshot with URL - Full Page Screenshot
SelectorsHub · Developer Tools
LowScreenshot with URL - Full Page Screenshot captures page screenshots, URL/title details, optional logs, and local screen recordings.