Browser extensions starting with S

Secret Server Utilities for Firefox lets any website send page-chosen text to the system clipboard.

Scam Blocker sends clicked HTTP and HTTPS links to PCMatic for risk checks.

Soundgasm Downloader sends Soundgasm page details and author link lists to an AWS API.

Steamlvlup Card Factory sends Steam account and card-farming session data to Steamlvlup servers.

ShortsBlocker rewrites Amazon product URLs to add its affiliate tag when Amazon pages load.

Search in YouTube sends selected page text to YouTube when its context-menu search action is used.

SnapTube MP3 for YouTube Music Download adds YouTube download links that send video URLs to snaptube.audio over HTTP.

Stream Bypass accepts media URLs in its web-accessible player and makes extension-origin requests to them.

Selection Context Search sends selected text and the page URL to the configured search provider when you use its search action.

Super History & Cache Cleaner lets any webpage trigger its floating clear button to erase configured browsing data.

Spector.js captures WebGL command data from pages after the user starts a capture.

SponsorBlock for Spotify sends Spotify playback skip telemetry to sponsor.ajay.app, including in private windows by default.

Simple Form Fill can show saved form-fill snippets inside every visited page when autocomplete is enabled.

Show External IP sends a popup request to showextip.azurewebsites.net to display your external IP address.

Sync Watch sends shared tab details and video playback events to its server after a user joins a room.

Gmail Inbox Zero by cloudHQ collects Gmail account-switcher email addresses and sends them to www.cloudhq.net.

ReviewProof sends Google Maps place details and review analysis data to Sherpli's Convex backend.

S3BucketList monitors response headers across websites to identify S3 buckets and store their initiators locally.

SA CORS Unblock rewrites CORS and frame-protection headers for SuperAnnotate and localhost pages when enabled.

SARAL sends active Instagram, YouTube, and TikTok creator profile URLs to api.getsaral.com for influencer lookup.

SCU Schedule Helper sends saved-schedule interests and imported Workday course records to its backend.

SDDTk: Download Videos Free sends TikTok video metadata from intercepted API responses to www.sddtik.com.

SE Chat MathJax loads MathJax code from cdnjs into Stack Exchange chat pages.

SEMRush Enhancer copies Semrush sidebar keyword data to your clipboard or a local CSV file.

SENTENCIFY sends selected page text and rewrite results to Mixpanel analytics.

SEO All Stars tools sends active-tab page HTML to a plain HTTP backend.

SEO Checker by Sekhlo sends page and Google result domains to external SEO metric services.

SEON Intelligence lets any HTTP(S) page trigger SEON email, IP, phone, or card BIN lookups through its iframe.

SEOPRIZE lets any HTTPS site ask whether matching URLs are open in your browser tabs.

SEObserver Metrics Toolbar sends the active tab's domain to app.seobserver.com when an API token is configured.

SERP Analyzer sends broad browsing telemetry to data.tinycms.xyz with a persistent UUID.

SERPTrends SEO Extension stores Google search queries, result URLs, and visit times locally for SERP trend history.

SF sends the user's StatFlow login email and password to analitika.statflow.ru and stores the password in Chrome sync.

SLIIT Eduscope Mods sends lecture watch-session analytics and a student identifier to edu-graph.vercel.app.

SRM Academia Course Feedback Filler sends scraped student identity to a Supabase feedback log after filling feedback forms.

SSP Wallet lets websites supply the requester identity shown on wallet signing prompts.

STAGIL Atlassian Cloud Browser Extension sends Atlassian user, group, and site metadata to apps.stagil.com.

STOP-IT V2 uses remote keyword lists to clear site storage and Google, YouTube, and Brave cookies when pages or searches match.

SXG Validator fetches the active tab URL and its Google signed exchange cache URL when its popup is opened.

Safari New tab sends logged-in Google profile details to Mixpanel and syncs saved tab history to sfnewtab.ashusharmadev.com.

Sahehly sends user-submitted page text and selected text to sahehly.com for correction and diacritization.

Sailor Moon Wallpaper sends up to 10 top-sites URLs to Google's favicon service when its new tab page opens.

Salah - Prayer Reminder sends your time-zone city to muslimsalat.p.rapidapi.com to fetch prayer times.

Salesforce Change Set Helper Renewed reads the Salesforce sid cookie to query metadata in the current org.

Salesforce Log Miner uses your Salesforce session cookie to fetch Apex debug logs from the same Salesforce instance.

Salesforce TurboKit lets web pages message its export tool to run Salesforce queries with your session.

Salesforce User Language Switcher reads Salesforce session cookies to call Salesforce APIs and change your user language.

Salidzini.lv Quick Search sends selected page text to Salidzini.lv when you use its context-menu search.

SameTix sends ticket event, seat, checkout, and confirmation activity to Amplitude with a persistent SameTix ID.

Samurai Anime Girl Neon Live Wallpaper fetches new-tab popups and shortcuts from api.gameograf.com.

San Francisco MeaVana removes key page security headers from HTTP and HTTPS responses using a broad browser rule.

Sand Teris - Unblocked & Free loads sandboxed game data, worker scripts, and WASM from editmysite.com at runtime.

The extension loads its sandboxed game resources from an editmysite.com preview host at runtime.

Satoru Gojo Hollow Live Wallpaper fetches remote HTML and inserts it into its new-tab page.

Saturn Wallet lets any website ask for the currently selected wallet address through its page message bridge.

Save GPT sends stored membership identity details from ChatGPT pages to a DigitalOcean-hosted verification endpoint.

Save Search Results collects visible search-result URLs from the active tab when you click its popup button.

Save Snap Videos rewrites download links to pass Snapchat page or media URLs to savesnaps.com.

SaveMate - Video Downloader scans all sites for media URLs and stores page context and request headers for downloads.

Scaler++ syncs Scaler profile, contact, and performance details to scalerbackend.vercel.app.