Browser extensions starting with S

Dictate text by voice into websites across the web.

Spelunky Classic sends a persistent extension-local client ID to Google Analytics when it runs and every hour afterward.

Play four Spider-style solitaire games in the browser for free.

This extension lets users play the Spiderman Masked Missions mini-game in Chrome.

Split PDF uploads the opened PDF file to falcon.zonepdf.com when you click its injected Split button.

Spoken sends shopping page URLs and related product image or page data to Spoken and PostHog services.

Sprint Reader saves highlighted page text locally when you select text and open the speed reader.

SpyHunter Web Security forwards navigated URLs to its backend and transmits hardware IDs and browsing statistics to Google Analytics.

Squadrats Route Planning copies its persistent UID into localStorage on supported route-planning sites.

Staffbase Email captures outgoing Gmail subject, recipients, and links on send and posts them to its Bananatag tracking backend.

Checks web designs for accessibility issues with tools for contrast, vision simulation, focus order, and more.

This extension helps prepare Steam uploads and preview profile customization on Steam profile pages.

This extension opens an offline Stick Ninja game from the browser toolbar.

Sticky Note Board Extension redirects new-tab search queries to search.notesticky-extension.com with an affiliate tracking ID.

Stop Reclame downloads remote rule lists that control which browser requests are blocked or allowed.

Manage browser cookies, local storage, and session storage from a dedicated interface.

This extension unblocks copying, text selection, right-click, and context menus on websites.

This extension displays a user-uploaded subtitle file on YouTube video pages.

Animated Shimeji-style pets move and interact on web pages while you browse.

Play a watermelon puzzle game directly in the browser, including offline play.

Turns the new tab page into a Sukuna and Gojo Jujutsu Kaisen live wallpaper dashboard.

Super Sound Booster sends a persistent per-installation UUID to Google Analytics every 60 minutes.

This extension adds quick ways to open and access ChatGPT from the browser.

Play a fast-paced tower defense game about stopping incoming sushi in your browser.

Automatically refreshes multiple browser tabs on timers set with second-level precision.

This extension detects and blocks web-based threats while you browse.

Control music playback across Spotify, Apple Music, Amazon Music, and YouTube Music from a mini player.

Volume Booster & Sound Equalizer captures the active tab's audio for local equalizer processing.

shortfuts sends EA Ultimate Team search result player IDs, prices, and timers to FUT Alert when search automation runs.

simpleGestures lets web pages mimic mouse gestures that trigger tab actions through the extension.

stopRU sends visited YouTube page URLs and detected video/channel details to Mixpanel analytics.

svg-grabber reads SVG markup and the source page title and URL after you click its toolbar button.

SellerSprite collects Amazon product listings, seller details, keyword rankings, and review data from users' sessions and transmits them to its own servers.

Boosts video volume in Chrome up to 600%, including during fullscreen playback.

Synology Image Assistant Extension accepts postMessage commands from any webpage, enabling relay to the local Synology desktop client.

Automatically upgrades HTTP website requests to HTTPS when the site supports it.

Translates selected text, typed phrases, clipboard text, and full web pages between many languages.

Hides selected distracting elements on social, video, email, and community websites.

Open multiple links at once by drawing a selection rectangle around them.

Season Pass Pass intercepts Bungie API keys from network headers and redirects Settings API calls to a third-party Cloudflare Worker.

Records video from your screen, a window, or a browser tab.

SoundCloud Downloader intercepts SoundCloud API credentials from the browser to authenticate its own track-download requests.

Send websites and links to a Firefox sidebar for side-by-side browsing.

Runs a Snowflake proxy that helps censored users connect to the Internet through Tor.

Provides Privacy Pass tokens for websites that support the Privacy Pass protocol.

Substital embeds the GiveFreely affiliate SDK and sends device and user IDs to GiveFreely when its popup opens on merchant sites.

SeoQuake SEO extension sends the domain and URL of every page visited to Semrush-owned API servers on all websites.

Speed Dial fetches a remote affiliate code on install, appends it to Yahoo searches, and screenshots bookmarked pages in hidden windows.

Customize website appearance by editing page styles with visual controls or custom CSS.

Streaming enhanced sends browsed content titles and locale to the TMDB API when the Show Rating feature is enabled.

Runs user scripts, background scripts, and scheduled scripts in the browser.

Shows Steam game prices in Argentine pesos with current dollar rates and taxes included.

Records videos from the browser or computer screen for saving locally or to Google Drive.

Skip Redirect intercepts navigation requests to extract and follow embedded destination URLs, bypassing intermediary redirect pages.

Manages Solana crypto assets, tokens, NFTs, staking, swaps, and dApp connections in the browser.

Enables scrolling by holding a mouse button and dragging anywhere on a page.

Sticky Password intercepts WebAuthn API calls and disables the browser's built-in password manager, routing credentials via its native app.

Captures full-page, viewport, or selected-area screenshots as PNG, JPEG, or clipboard images.

Adds a right-click option to search website images with Google Lens.

SimpleLogin exposes an unguarded postMessage handler on every page, letting any site script force navigation to the SimpleLogin dashboard.