Browser extensions starting with M

Microsoft Single Sign On relays postMessage calls from any HTTPS page to a native Windows Web Authentication Manager (WAM) bridge via a hardcoded channel UUID.

Automates web tasks by recording browser actions into Power Automate flows.

Malwarebytes Browser Guard sends blocked URLs and tab browsing history to Malwarebytes telemetry servers by default.

Enforces Microsoft Purview data loss prevention policies for sensitive files used in Chrome.

Microsoft Bing Search for Chrome fetches remote HTML templates from a Microsoft-controlled URL and injects them into every HTTPS page visited.

Microsoft Bing Homepage & Search reads a Google Analytics attribution cookie from chrome.google.com and includes it in daily ping beacons sent to Microsoft.

Imports article metadata and available PDFs from web pages into a Mendeley library.

This extension shows Microsoft Rewards progress and provides quick access to reward activities and redemption pages.

Monica assigns each browser a persistent UUID and transmits usage events, locale, timezone, and subscription status to its servers.

Warns before you visit known harmful websites listed by Microsoft.

Momentum's site-blocker overlay can be dismissed by any web page via an unvalidated postMessage.

My Apps Secure Sign-in Extension scans form fields on all websites during admin SSO capture and sends opt-in diagnostics to Microsoft.

MEDITECH Extended Software and Hardware bridges MEDITECH web pages to a local native application via a title-gated content script relay.

Runs the MEGA web app locally in the browser for MEGA cloud storage and communications.

This extension stops auto-playing videos to speed up browsing and help save data and battery life.

Microsoft Bing Homepage & Search Engine reads all browser cookies to extract affiliate codes and transmits daily telemetry including a persistent machine GUID to Microsoft servers.

Mobile simulator - responsive testing tool sends paid subscribers' email and account identifiers to PostHog analytics, bypassing the analytics opt-out setting.

Adds reading, writing, translation, voice, and vocabulary tools across online learning webpages.

MultiPassword broadcasts vault credentials to any page via wildcard postMessage and exposes its vault API to multipassword.com subdomains.

MozBar transmits visited URLs and search result links to api.moz.com when the user is signed in.

Sets the browser homepage to MSN.com and provides Bing as the search engine.

Enhances YouTube watching with AutoHD, cinema mode, playback controls, and visual customization.

Microsoft Multimedia Redirection bridges browser audio/video to a native OS host and shares internal port identifiers across page iframes without origin restrictions.

MSN New Tab sends a daily telemetry ping over plain HTTP to g.ceipmsn.com with a persistent device identifier.

Renders local and remote Markdown files directly in the browser with configurable viewing options.

Malwarebytes Browser Guard sends blocked URL details and referrer chains to Malwarebytes telemetry servers when threats are detected.

Microsoft Bing Search Engine reads all browser cookies to find tracking codes and sends browser telemetry to g.ceipmsn.com daily.

Music Search for Chrome™ overrides the browser's default search engine and routes all search queries to amazingossearch.com with an affiliate tracking parameter.

Mute individual browser tabs from a context menu or the extension icon.

Muzli sends each top-visited site URL to Google's favicon service and reports usage telemetry to Google Analytics on every new tab open.

Send links, selected text, and image URLs from your browser to a connected JDownloader.

Save articles to MyLOFT to read later, organize, or share.

MetaMask sends transaction details to its Blockaid security-alerts API by default to check for threats before signing.

Expands saved text and autofills forms, spreadsheets, and messages across websites.

Inspects a web page’s metadata and structured data for SEO review.

This wallet lets users manage SOL and BTC NFTs, tokens, Ordinals, and BRC-20 assets from the browser.

This extension adds a simple clicking game about earning virtual money and buying upgrades.

Microsoft Bing Homepage sends persistent machine ID telemetry to g.ceipmsn.com over cleartext HTTP.

MightyText exposes notification settings to any website that embeds its web-accessible helper page.

This extension mirrors videos from other participants in Google Meet calls.

Maps Assist sets Yahoo as the default search engine with embedded affiliate codes that route revenue to the publisher on every search.

Downloads detected HLS, DASH, MP4/WEBM, audio, live streams, and subtitles from supported web pages.

Opens mailto: links in a Gmail compose window.

This extension extracts business lead details from Bing Maps and exports them to Excel or CSV.

Markdown Here stores a hidden base64 copy of the original draft in the page when it renders Markdown.

Plays local and online video or audio files in an HTML5 media player.

Adds a virtual cat pet that walks on webpages while you browse.

Mes Envies sends the active tab URL and saved wishlist identifiers to MesEnvies when its popup opens.