Browser extensions starting with S

Mutes the active tab and can keep specified URLs or domains muted automatically.

SiaBot - Siaep MA sends SIAEP school, user, class, and worksheet row counts to a Google Apps Script endpoint.

Siap Dips sends Moodle quiz content to AI endpoints and can rewrite a Safe Exam Browser attestation header.

Adds a sidebar for casual notes and temporary reminders while browsing.

Adds a sidebar for organizing NotebookLM notebooks with folders, favorites, and search.

Highlights words on webpages and shows ASL or BSL sign videos when you hover over them.

Sign Search sends selected or typed search terms through a Heroku CORS proxy to sign-language search sites.

Adds grade analytics, charts, colors, themes, and progress displays to ÉTS SignETS pages.

Sends PDF documents opened in the browser for electronic signing through configured workflows.

Signadot applies stored routing and tracing headers to requests sent to visited websites when enabled.

Adds dynamic RGB lighting effects to Chrome when SignalRGB is installed.

Signals Gateway Pixel Helper records detected pixel event details from websites into local browser storage.

Create drawn or typed digital signatures and download them as image files.

This extension manages Signum accounts and connects them with supported decentralized applications.

SimRepo sends GitHub repository and starred-repository IDs to simrepo.dera.page for recommendations.

SimilarWeb Website Traffic Rank,CSV Download sends the active site's domain to www.similarweb.com when opened.

Simple AI Chat exposes a chat page that accepts web messages to open tabs and write clipboard text.

This extension automates repeated clicks in follow-mouse, element, or coordinate modes.

Adds a lightweight pop-up notepad with auto-save in the browser.

Displays a table of contents for web pages to help navigate long articles and documentation.

This extension provides quick controls for browser privacy-related settings.

Provides a simple interface for using a proxy.

Quick notes are saved and synced across desktop devices.

Records video and audio from the current Chrome tab with one-click tab capture.

Searches and replaces text inside input fields and text areas on web pages.

Simple Select to Translate sends selected text and page URLs to Google Translate when you use its translation actions.

Reloads a chosen tab automatically at a user-set interval.

Simple Text Scraper copies the active page's URL, title, and body text into its popup for local export.

Simple Video Downloader lets any web page trigger a browser download through its content script.

This extension blocks listed websites or asks for confirmation before opening them.

Automatically syncs eBay sales data to a Google Sheets reseller spreadsheet.

Simplify: Text Simplifier sends selected page text and saved extension data to its Heroku backend for processing.

Simpsons Bart Nirvana Live Wallpaper fetches remote popup HTML and injects it into its new-tab page.

The extension sends editable Gmail and Google Docs text to sinonimos.com.br for automatic spellcheck.

Siphon 吸词 sends captured words, surrounding sentence text, and the source URL to supabase.top.

Sistema ZapPlus sends optional WhatsApp custom-tab sync changes and the user's WhatsApp number to ZapPlus webhooks.

Sita Screenshot Full Page uploads user-shared screenshots and page metadata to codezi.pro.

Blocks distracting websites using customizable keyword filters and can redirect users to a blocked page.

Shows pop-up messages about responsible AI website usage on supported sites.

SiteBlock redirects visits to blocked sites to a hosted block page at not-today.gadfaria.com.

SiteBlocker sends blocked-site domains to PostHog when its rules match a page.

Sitecore Author Toolbox sends hashed Sitecore user email addresses to Gravatar on Experience Profile pages.

Sitecore Extensions lets any website read and change its extension storage through an all-page message bridge.

This extension turns XML sitemaps into pivot tables for easier URL structure analysis.

Finds XML sitemaps for the website you are currently visiting.

Adds keyboard shortcuts for controlling Skillshare video playback.

Skin|Chess.com has no confirmed data-recipient behavior in the reviewed records.

Provides a keyboard-accessible menu for navigating page landmarks and headings.

Adds a button on YouTube pages to open the current video on SkipVids.com.

Skipply downloads rules from skipply.net that can inject JavaScript into matching tabs.

Skool Video Download Tools uses page cookies and referrers to fetch protected Skool and Vimeo video files for downloads.

Play the Skribbl.io drawing and guessing game from the browser extension popup.

This extension replaces the new tab page with a cybernetic skull live wallpaper and built-in browsing widgets.

SkyMetric runs a Parcel hot-reload listener that accepts JavaScript updates from localhost on Kaspi product pages.

Slack Printer sends Slack page URLs, titles, and browser interest cohort data to slackext.com analytics.

This extension adds an offline Teen Titans Go slashing game to Chrome.

Suspends unused tabs after a set time to help save system resources.

This extension provides a 3D slicing game with ASMR-style sound effects.

Makes SlideShare presentations easier to view with embedded viewing and slide navigation controls.

Slither IO Unblocked Game New Tab inserts game listings fetched from kavgamiz.com into its new-tab page.