Browser extensions starting with S

Automatically scrolls web pages at a user-set speed for hands-free reading.

Skinport Plus sends Steam inventory and trade item names to Skinport to retrieve item prices.

Brings team communication into Slack through channels, private groups, direct messages, file sharing, and search.

Adds dynamic timers, clocks, dates, and presentation triggers to Google Slides using text placeholders.

Blocks popups, pop-unders, and overlays while you browse the web.

SmartProxy loads an AvaProxy favicon from avaproxy.com when its settings page opens.

SmoothScroll lets child frames send messages that scroll the top page.

This extension adds a free 3D sniper shooting game playable with keyboard and mouse controls.

This extension uses AI to solve homework questions and summarize webpages or YouTube videos.

Boosts audio volume for music, video, and social media sites in Chrome.

This extension boosts browser audio volume and adds deep bass controls for online media.

Speech Translator exposes an embeddable popup that starts speech recognition and sends transcripts to Google Translate.

Spell Checker for Chrome sends text you check to external spelling services.

Spoof Geolocation exposes stored spoof-location settings to scripts running on every HTTP or HTTPS page.

This extension blocks audio ads in the Spotify web player and skips to the next song.

Shows Squarespace page IDs so you can copy them for use in your code.

Stealthy routes browser traffic through HTTP proxies selected by its API when the user turns the proxy on.

Sticky Notes 3.8 - Super Quick & Personal sends note metadata, settings, usage counters, and stored email to Amplitude.

Study Tools voor Magister stores your Magister authorization token locally and reuses it for Magister API requests.

Subtitles for Language Learning stores OpenSubtitles credentials using a passphrase bundled with the extension.

Helps users manage email conversations, prioritize important work, and collaborate faster with AI-native email.

This extension receives browser notifications from a paired Synology DiskStation NAS.

Synology Image Assistant Extension exposes a native-messaging file-upload bridge to any web page via an unguarded postMessage handler.

Website SEO Checker sends the active tab URL to Sitechecker API endpoints when you open its popup.

Sprint YouTube Speed Up routes YouTube and Google video traffic through proxy servers it fetches from speedyext.ru.

SingleFile bundles hardcoded OAuth client secrets for Google Drive and Dropbox, and a hardcoded Woleet API bearer token, in its source.

This extension works with the SafeInCloud Password Manager desktop app.

This extension adds a free 3D sci-fi racing game with endless spacecraft gameplay.

This extension supports sales prospecting, list building, marketing, CRM data entry, and appointment setting.

This extension tests available Shein discount codes at checkout and applies the best one to your cart.

Runs a Snowflake proxy to help people in censored countries access the Internet through Tor.

Softdreams công cụ ký điện tử exposes a hardware-token signing bridge to any web page without enforcing an origin allowlist.

SAFEQ Cloud ships a Playwright testing backdoor in production that any Chrome extension can use to disable authentication or spoof identity.

SimpleLogin by Proton lets any page trigger alias creation and read the generated alias from its email input.

Reopen recently closed tabs from a simple toolbar popup.

Blocks user-selected websites to help create a barrier against off-task browsing.

Automatically clicks YouTube skip-ad buttons and hides some YouTube ad elements when possible.

Sparkles Giveaway injects a button on YouTube that encrypts Steam trade offer credentials with a hardcoded operator-held RSA key, and fetches remote configuration via a covert DNS-over-HTTPS channel.

This extension adds Gmail email tracking for opens and link clicks with real-time notifications.

This extension lets you play a 3D free-kick football game controlled with the mouse.

Summary Webpage extracts the full article text of the active page and sends it to Hugging Face AI servers using hardcoded API tokens.

Symantec Authentication Client Extension relays PKI commands from any web page to a locally installed native messaging host.

The extension reads your Twitch OAuth token and watch history, then transmits them to service.streamkey.ru over a persistent SignalR connection.

Shows a green, amber, or red validation status for websites you visit.

This extension gives each Salesforce org a distinct colored favicon.

This extension opens a Python 3.7.4 interpreter from the browser toolbar.

Screenshot YouTube Video sends the current page URL and a persistent browser ID to api.videodlservice.com daily.

Share link via email opens mail compose pages with the current URL, page title, and selected text when you choose to share.

Shiftsearch sends every URL you visit plus a persistent device ID to pass.work.ink, then redirects the tab to a server-chosen destination.

SimpRead can import a user-supplied 'third-party rule source' and runs expressions from those rules against the pages you read.