Browser extensions starting with S

SaleFlow reads Wildberries' own anti-bot session tokens from the page and sends them to its own backend on every API call.

WA Sender uploads recipient phone numbers and message text from every WhatsApp send to the vendor's Firebase backend.

Provides developer tools for formatting JSON responses and editing query URLs.

Simple Video Downloader sends the video URL you enter to a third-party site instead of downloading it in the extension.

Smart WA Sender Pro sends your Google profile email and WhatsApp number to the vendor's Google Analytics property.

This extension adds a playable Snake vs Block game controlled with arrow keys or WASD.

SavvyConnect streams every page you visit, plus raw request/response headers including cookies, to Luth Research.

Shotcut online video editor sends every visited URL and download to runapps.org and can redirect the tab based on the server's reply.

Simple Audio Voice Sound Recorder sends every visited URL and its request headers to cs.bkp.v1.fsdifhj.com after a consent click.

SafeTuber sends YouTube video IDs/captions and viewing telemetry to its AWS and Supabase backends.

Send to qBittorrent stores your WebUI host, username, and password in plaintext via Chrome Sync.

Subtitle Translator sends your Google account ID to imgkits.com to log you in and uploads translated documents to its servers.

SNS Assistant | Instagram Threads overrides confirm, prompt, and alert dialogs on every blog.naver.com page it loads on.

Shopify数据助手 loads a vendor-hosted iframe on every page that can request the page's full HTML and proxy fetches.

Smarty's opt-in Amazon Price Protection feature opens a hidden tab to scrape your Amazon order history and sends it to Smarty's servers.

Shein Coupon Finder sends the full URL of pages you visit on any site to ext-api.orangeoffer.com.

Play a Snake game overlay on the webpage you are currently viewing.

Selling on the Spot Marketplace Global Nexus sends the URL of each page you finish loading to mymosttrusted.net.

Save Outlook Emails as PDF sends your signed-in Outlook email address to cloudhq.net when Outlook loads.

SongPhuongTrade adds order tools to 1688, Taobao and Tmall pages and sends product data to songphuongtrade.vn.

SDDTikTok sends the TikTok video lists your browser loads to api.datatool.vip along with a visitor ID.

Savelore accepts dashboard-supplied sync tokens and uses them to upload saved snippets to Supabase.

Shepherd records page content and sessions on every site and sends them to Composite's servers.

SSHGate sends the address of every .html or .xml page you open to redcoolmedia.net.

SoldScope exposes a background fetch handler to any other installed extension, which can retrieve arbitrary URLs' HTML through it.

StreamFab Netflix Downloader sends the active tab's full URL, account email and machine ID to DVDFab with its analytics events.

SafeCheck uploads your full Bybit P2P order history, including payment details, to its servers every 15 minutes.

SN Utils OnPrem adds developer tools to ServiceNow pages and lets other installed extensions write ServiceNow records.

SLTD sends your Chrome email, WhatsApp phone number and profile name to wa-web-plus.web.app on WhatsApp Web load.

Site Palette accepts an unauthenticated message from any page and adopts whatever token that page supplies as the user's login credential.

Secure Document Sharing by cloudHQ reads the email of every signed-in Google account on Gmail and sends the list to cloudHQ.

Stat Layer sends the active tab's hostname to SimilarWeb's private data API when you open the popup.

Save to sends selected phone numbers or emails and the page URL to saveto.imagetext.xyz when you click save.

SyncUp accepts a page message that points its Socket.IO connection at a server chosen by the sender.

Social Lead Extractor uploads scraped Instagram profiles, including emails and phones, to the vendor's own server.

StreamFab M3U8 Downloader forwards request URLs, headers and cookies from every page to its local StreamFab desktop app.

SuperDog Authentication relays messages from any web page to a local native host and posts replies back to pages.

SmartPrice Guard rewrites every Amazon product URL and link with its own affiliate tag from a remote server, undisclosed.

sslspeedy3 answers every HTTP authentication challenge on any site with its stored proxy username and password.

Stream Live sends your VK Video login token to streamlive.fadme.dev when you sign in through the extension.

Shopping Assistant opens hidden background tabs on shopping sites to set affiliate cookies for the developer.

Skip Wait lets pages trigger credentialed extension fetches to page-chosen URLs.

Social media Ad finder relays Facebook ad data to fbadcollector.adspyder.io, and any website can trigger that relay, not just Facebook.

Save Emails to Egnyte lists every signed-in Google account email and sends it to cloudHQ when Gmail loads.

Speeder reads Paramount+ profiles, watch list and subscriptions on server command and sends them to me3x.online.

Snipman inserts saved text snippets and reports each snippet ID and the site hostname to its own server.

SteamAuth lets its server request your Steam login cookie and create or accept Steam trades through a socket.

Salvage Copilot sends Copart lot details to its AWS Lambda and fetches extra lots' VINs when the server asks.

SERP Analyzer sends the hostname of every site you visit and your IP address to third-party servers on each page load.

ScoreGap collects LSAT score-report details from prep sites and sends them to scoregap.com.

Visily's screenshot-to-design extension runs on every page and answers any page's request to return a frame's contents.

SL Sender bundles an affiliate SDK that watches every site you visit and opens background tabs to inject affiliate cookies when shopping.

Sonic the Hedgehog opens a fake 'browser unsupported' page on install that pushes an Opera GX download through dark patterns.

Sticky Notes overrides the new tab page with a search box that submits typed queries to its own server instead of the browser's default search engine.