Browser extensions starting with Y

Yandex Access injects users' real IP addresses into proxied requests and sends daily telemetry with a persistent UUID to Yandex servers.

Automatically clicks YouTube’s playback confirmation prompt to keep videos playing.

This extension manages tabs with behavioral analysis, logging, and detection for several browser-based techniques.

Yahoo Homepage transmits a persistent device UUID to Yahoo analytics servers every four hours and injects an identification header on all yahoo.com requests.

Redirects YouTube Shorts to the regular YouTube video player.

Control HTML5 video playback speed with on-page buttons or configurable keyboard shortcuts.

Restores original YouTube titles, descriptions, subtitles, thumbnails, channel branding, and audio instead of translated versions.

Automatically sets YouTube video quality based on your preferred resolution and FPS.

YouTube High Definition sets video quality on YouTube pages and broadcasts the extension's runtime ID via window.postMessage on each load.

Improve YouTube! modifies the YouTube interface and sends optional requests to googleapis.com using a bundled default API key for public video and channel metadata lookups.

Yellow Search sends default-search queries to yellow-search.com with a server-issued UID.

Shows popup dictionary definitions for words in texts across 20+ languages.

This extension shares panel members’ streaming history and other account-based web activity with YouGov for points.

Restores classic YouTube-style layouts and visual controls within the modern YouTube interface.

YouTube Row Fixer exposes its storage preferences to scripts running on YouTube pages.

YouTube Summary & ChatGPT by Glasp sends YouTube transcripts and video details to Glasp services for summaries.

YouTube Tags sends YouTube watch-page video IDs to Google Analytics with a persistent extension UUID.

Blocks selected YouTube content using user-defined rules.

Adds danmaku-style bullet chat overlays to YouTube Live streams.

Keeps YouTube video details in original or preferred languages instead of translated versions.

Provides free Bible reading, search, audio, plans, notes, bookmarks, highlights, and sharing features.

YouTube Mini Player generates a persistent device fingerprint and sends it with every request to the developer's server.

Turns YouTube videos into transcripts with AI summaries and chat.

Shows the exact upload date and time for the YouTube video you are watching.

Send and manage REST API requests from the browser with saved favorites, history, and custom headers.

Applies a customizable dark theme to YouTube using YouTube’s native dark mode.

Shows YouTube video transcripts in-page with options to copy, download, and generate summaries.

Adds a windowed fullscreen button and shortcut for the YouTube video player.

ySense Addon fetches account and notification data from addon.ysense.com over plaintext HTTP.

Yeastar Linkus for Google connects to a user-configured PBX and transmits diagnostic logs containing usernames and extension numbers to it.

Adds MrBeast to YouTube thumbnails for a clickbait-style browsing effect.

YouTube Shopping reads the active tab's URL and title and forwards them to an embedded studio.youtube.com iframe when the popup opens.

YCS fetches YouTube comments, transcripts and live chat from YouTube's own API to power its comment search, and caches them locally.

Restores missing images on YouTube by changing HTTP requests as they are sent.

YouTube Subtitle Downloader generates a persistent browser fingerprint and sends video IDs and user actions to the developer's server.

YourTV Chrome extension bridges web pages to a native host using eval() on both incoming and outgoing messages, creating code-execution exposure.

YouTube Downloader adds download buttons to YouTube watch pages and fetches YouTube's player JS at runtime to decode video URLs.

Routes Chrome browsing through a VPN or selected proxy locations for private, location-based access.

YouTube Monetization & RPM Checker by TubeLab sends YouTube channel RPM and monetization details to TubeLab servers.

Translates YouTube comments with a button next to each comment header.

Unsubscribes from all YouTube channel subscriptions with one click.

YouTube mp3 sends the full YouTube page URL to a third-party conversion service when the user clicks the injected Download button.

YouTube Downloader (UDL Helper) sends browser cookies to a third-party tracking domain before the user accepts any consent prompt.

Yandex.Bar sends per-navigation URLs, page titles, and referrers to Yandex, and transmits browsing history depth on first install.

This extension hides selected YouTube feed and recommendation areas.

YouTube AdBlock - Coffee Break for YouTube transmits full browsing history and browser fingerprint to its developer analytics server on every page navigation.

This extension generates text transcripts from YouTube videos.

YouTube Video Transcript sends YouTube video IDs and transcript or summary requests to yt-to-text.com.

Youtube Summary With AI sends page URLs and video metadata to PostHog analytics when users trigger AI features.

Youtube Video Skip Ad Trigger sends each YouTube URL you visit to Google Analytics, tied to a persistent per-user UUID.

Youtube to Transcript injects a script into the active tab letting its vocabulary.live iframe read and write the page DOM and localStorage.

Yandex — Homepage sends a persistent browser UUID and extension runtime ID to Yandex servers at startup and every two hours.

Yet Another Flags sends each visited site's hostname to Google DNS and geoip.furman.im to show a country flag.

You.com: AI Search Assistant sends Google search results and a persistent guest ID to You.com.

YouLearn uploads selected Canvas/D2L course content to api.youlearn.ai and can send opened page URLs to app.youlearn.ai.

YouTube Subtitle Dubbing and Web Page Reader sends selected article text to ReadIt Cloud for text-to-speech playback.

YouTube Text Tools sends the current YouTube URL, video ID, and stored client/session IDs to its analytics server.