Browser extensions starting with M

Music Mode for YouTube stores its extension ID in YouTube pages' sessionStorage.

Shows browser notifications for new email across configured mailboxes.

Text from Chrome using your Android phone number for real SMS and MMS messaging.

Mendeley Web Importer sends analytics with your IP address and device fingerprint to New Relic, Adobe Analytics, and Mendeley.

This extension manages Mango network crypto accounts, assets, dApp connections, and transaction approvals.

Mochi Dictionary Extension ships a static Mochidemy API key used for dictionary and profile API requests.

Manuals Explorer replaces the browser's default search engine with Yahoo Search via affiliate tracking parameters on install.

MAL-Sync fetches remote configuration from chibi.malsync.moe to determine which anime sites receive dynamically registered content scripts.

MATH Keys - Equation & Formula Editor sends copy-as-image formulas to Cloud Run and math-entry events to Google Analytics.

Checks live Google search result rankings with numbered SERP positions.

Draw a pixel ruler on webpages to measure width, height, and alignment.

This extension automates queued Meta.ai prompts for batch image, video, and content generation.

This extension adds custom color options to Google Calendar event color menus.

Tracks classes, homework, exams, and study tasks in a cross-platform academic planner.

Mailmeteor sends Gmail campaign content and email drafts to its own servers to power bulk sending, tracking, and AI writing features.

Converts local or linked media files into MP3 files from a toolbar converter or context menu.

Maps Scraper transmits scraped Bing Maps business data to its servers for server-side email and social media profile extraction.

Play a randomly generated maze game from a browser toolbar popup.

Combines multiple PDF files online into a single downloadable PDF.

Motrix WebExtension sends download URLs and matching cookies to the local Motrix JSON-RPC service.

Sets Yandex as the default search engine for browser searches.

Adds multi-select tools for managing YouTube playlists faster.

Blocks browser-based cryptocurrency miners across websites.

Metric Unit Converter & Search replaces the default search engine with a Bing affiliate URL on install.

Hiver collects Gmail session data and user email addresses for customer service analytics and loads remote configuration from its servers.

MP3 Converter & Downloader sends an extension-generated UUID to Google Analytics over HTTP.

Magic list replaces your new-tab page and sends every search you type to rsrc-withus.com with fixed affiliate tags.

MagicSchool AI sends user action telemetry and auth session tokens to app.magicschool.ai on every interaction across all sites.

Majestic Backlink Analyzer sends the current tab URL to Majestic APIs when you run its backlink lookup.

Turns videos, streaming sites, websites, and social media into language-learning material.

Minesweeper Original sends a UUID-based identifier to Google Analytics every 60 minutes while the browser is running.

Minimal Theme for Twitter / X sends user-clicked Twitter/X draft text to Typefully in a new URL.

Create and collaborate on wireframes, mockups, diagrams, and prototypes in a web app.

This extension forwards multiple emails through the Gmail website.

Highlights user-specified words on webpages with configurable colors and search options.

This extension connects your browser to The Open Network for crypto storage, transfers, staking, and payments.

MyIPCam sends activation codes to myipcamapp.net over unencrypted HTTP and contains a hardcoded offline bypass key.

Mystique Search sets itself as the default search engine and routes all browser searches to mystiquestudio.net.

SEO Extension by Mangools sends the current tab URL to Google PageSpeed and Rollbar using hardcoded API keys embedded in the extension.

Scrolling Screenshot Full Page uploads screenshots to markuphero.com and accepts screenshot requests from markuphero.com pages.

Manga Translator sends a device fingerprint and base64-encoded image data to ichigoreader.com with every translation request.

MathWallet exposes the unlocked selected wallet account to HTTP and HTTPS pages where its provider is injected.

Write and save notes in Chrome with offline access and optional cloud sync.

Mendeley Referencer embeds its Mendeley OAuth client secret and sends it to api.mendeley.com during login.

Minea reads Facebook profile data (ID, name, city, birthday, gender) while browsing the Ads Library and sends it to data.minea.com.

Mo'Kick fetches unversioned CSS from a GitHub Gist on every kick.com page load without integrity verification.

Monosearch reads Amazon product and seller data from pages you view and forwards it to the vendor's mnsearch.com and mnrate.com backends.

This extension keeps MyRegistry gift recipient shipping details available during merchant checkout.

mail.com MailCheck scans open tab URLs at install to capture affiliate codes and sends account and install data to go.mail.com on uninstall.

Map Route Pro and Search relays search queries and inferred location to its servers and replaces your default search engine with Yahoo.

Manuals Hunt and Search overrides the default search engine to Yahoo with undisclosed affiliate tracking parameters on every search.

マイナポータル injects hidden DOM elements exposing extension version and app status to page scripts on matched government portal sites.