Browser extensions starting with H

Heimdall captures the text you copy or cut on any page, tags it with your Chrome profile email, and sends it to Shopee's servers.

Hero Wars - Assistant intercepts every Hero Wars game-API request and response and sends parsed game data to its own servers.

Higgsfield Instant uploads selected page images to Higgsfield APIs for AI media generation.

History by Date sends visited domains to those sites when it loads favicons for history entries in its action page.

Homer sends real-estate listing pages, search URLs, listing IDs, and page-view analytics to its APIs.

HoneyBook Extend lets Gmail pages request stored extension data and route authenticated calls to HoneyBook's API.

HubSpot Social sends page details from user-triggered shares to HubSpot's social composer.

Hulu Picture In Picture [QVI] sends logged-in Hulu viewing history and account/profile data to me3x.online.

Hustle sends each keystroke typed into its new-tab search box to hustletab.io for autocomplete suggestions.

HyperIntelligence scans page text on every navigation and sends matched keywords to the enterprise-configured MicroStrategy server.

ZoneAlarm Web Secure authenticates to its local security agent using an API key hardcoded identically in every install.

HBO Max Picture in Picture [QVI] sends Max profile-linked watch history and live sports viewing details to me3x.online.

HBO Max Speeder sends Max profile details and viewing activity to metricsmint.quest and me3x.online by default.

HP Dynamic Audio captures URLs, page titles, and media sources from streaming sites and forwards them to a locally installed native app.

HP Support Assistant for ChromeOS lets HP's support site request ChromeOS serial, hardware telemetry, and diagnostics.

The extension reads the device MAC address via a native messaging host and returns it to HSBC China online banking pages.

HTML Elements Screenshot can make every website response appear CORS-permissive when its CORS mode is enabled.

HTML to Figma disables other enabled extensions before converting the active page.

HTML5 Universal Speed Hack injects timing hooks into every page and lets page messages change them.

Blocks chosen websites unless you spend Habitica currency and includes a Pomodoro timer.

Hacker Tab sends your public IP address to ipinfo.io when you click Show IP on the new-tab page.

Halo sends dapp signing details, including wallet address and dapp origin, to KuCoin Sensors Analytics.

Hamatata.com Helper sends captured media URLs and page URLs to hamatata.com over HTTP when you open its player.

Hamty.cz doplněk sends the current shopping URL to Hamty affiliate endpoints during cashback activation.

Hanzii sends user-selected page text to Hanzii translation services and Google Translate.

Heurio sends user-submitted bug notes, screenshots, page URL details, and DOM selectors to its Azure backend.

HeyMax: Stack Miles & Rewards sends extension analytics events to Customer.io using credentials bundled in its content script.

Highlight and Copy Protected Text sends the active page URL and device ID to Cresotech when copy mode is enabled.

Highlighty stores visited page URLs and search-term match counts locally when optional analytics are enabled.

History Trends reads your browser history and visit details to build local statistics.

Horus Web sends active-tab hostnames with local Horus agent identifiers to Horus BI endpoints during navigation.

HowNow sends Google search terms to its backend when its search overlay is enabled.

Howdou for Google Classroom sends the signed-in teacher's email address and assignment IDs to embed.howdou.net on every interaction.

Hulu Speeder: adjust playback speed [QVI] uploads Hulu watch history and profile identifiers to me3x.online by default.

HumanizeAI sends selected or assistant ChatGPT content to its backend for rewriting.

HAPPY ORDER injects a page script on shopping sites and disables Taobao anti-risk feature flags.

The extension sends report-issue submissions to Wireframeit with a secret embedded in its service worker.

Hackertab starts Sentry Replay in its new-tab UI with unmasked text and media and default PII enabled.

Holmes sends unmatched bookmark-search text to Google Search over cleartext HTTP.

Home page by Scott loads its new-tab background image and comment text from an Amazon S3 bucket.

HDrezka Helper sends active-tab URLs to Google's favicon service when the current tab has no favicon.

Hello Kitty Cursor injects an extension-identifying class into pages where it runs.

Helper Tools for ASOS fetches affiliate settings from getrates.su and appends them to clicked ASOS links by default.

Highlight Emails in Gmail by cloudHQ sends signed-in Gmail account addresses to www.cloudhq.net during Gmail startup.

Hot Virtual Keyboard Extension reads page titles and marks input-focus state in document titles on every page it can access.

Hudl Multi Screen adds page controls whose DOM IDs include its extension runtime ID on Hudl video pages.

Hunter Spy stores Shopee product and search details in page localStorage and hidden DOM markers.

Hyper Bold stores each visited page URL and hostname in local browser storage.

Happy Wild Cats tags default search requests with a persistent session ID sent to happycatswild.com.

Haxball All-in-one Tool sends chat messages you choose to translate to private-api-mkab.onrender.com.

Hello Kitty Wallpaper New Tab sends your top-site URLs to Google's favicon service on the new-tab page.

Hilton ResSmart Click to Dial loads third-party Font Awesome CSS on matched call-center pages.

Hive - Extension Detector sends enabled extension IDs, names, and versions to Smart Interviews pages.

HBO Max Party sends Max viewing, account, and profile data to remote collection endpoints.

HTML Tag Error Checker sends selected page and link URLs to a local native host during its open-in flow.

HTML to Markdown converts selected page HTML to Markdown and writes it back to the clipboard.

HTML-Table Scraper copies selected table text and form field values to the clipboard or a local download.

Hire3x Proctoring disables capture-capable extensions and reports tab activity during assessments.

HoloSchedule sends your selected member subscription mask to holo.dev during schedule syncs.