Browser extensions starting with H

Hublead syncs LinkedIn invitation and connection details to its Hublead backend.

hektCaptcha downloads captcha-specific ONNX models from hekt-static.akmal.dev to automate challenge clicks.

Hunter sends the active tab's domain to extension-api.hunter.io when pages load or the active tab changes.

Html Validator sends inspected page HTML to W3C's online validator when the user runs online validation.

HBO Max Dual Subtitles sends subtitle text, tab details, runtime messages, and storage changes to Amplitude.

HKUL Search Assistant redirects opted-in publisher pages through HKU Libraries EZProxy.

HTTP Commander lets matching Default.aspx pages tell the browser to download page-supplied files.

Hero Wars Simulator fetches remote game-modification scripts and injects them into Hero Wars pages.

Hindi Dictionary sends selected single words from any website to k.kodand.com for dictionary lookups.

History Eliminator clears browser history when its background worker starts and after the final browser window closes.

Horizon Timez sends searches typed into its new-tab page to www.horizontimez.com.

Hreflang Checker reads hreflang, canonical, and page URL metadata from HTTP(S) tabs for local validation.

Human Reader lets sidebar pages request navigation rules that remove X-Frame-Options for chosen sites.

HyperChat sends YouTube live chat text to kentonishi.com when message translation is enabled.

Happy Right-Click 2 copies active-page text, links, and image URLs to the clipboard when you use its menu actions.

VPN routes all browser requests through Hiddence proxy servers using hardcoded shared credentials.

Clear History & Web Cache injects a page button that can trigger deletion of configured browsing data.

H1B Sponsor Checker exposes a company details page that can send stored access codes to its API for employer searches.

HBO Max Extended shares Max/HBO account identifiers and viewing data with me3x.online and metricsmint.quest by default.

HTML to PDF File Converter converts the active tab into a PDF when you click its popup buttons.

HedNet Protocol Extension fetches your public IP address from api.ipify.org while its popup is open.

Hello Kitty Live Wallpaper sends saved new-tab shortcut URLs to Google's favicon service when the page renders.

Hello Kitty Wallpapers HD New Tab sends custom shortcut URLs to Google's favicon service.

Henry Luxe Rewards sends serialized extension storage, including Supabase session tokens, to henry.social API requests.

Hexofy Scraper sends newly visited page URLs to Hexofy's GraphQL API while you are signed in.

Hide Expert VPN sends your screen dimensions to a third-party analytics API after installation.

Hide shorts for Youtube™ contacts Google Fonts from its popup when you open the extension menu.

Homely can fetch your eBay cart page over cleartext HTTP for its optional basket widget.

HoverTranslate sends selected YouTube caption text to translation services when you hover subtitle words.

Hulu Skipper sends Hulu watch history and account profile details to me3x.online and metricsmint.quest.

HypeStat Analyzer sends the active tab hostname to hypestat.com when you open its popup.

Hlídač Shopů sends supported-shop product page URLs and scraped item details to api.hlidacshopu.cz.

HackBar stores active-tab POST form data and request headers so its devtools panel can replay them.

Holodex Plus lets embedded YouTube live-chat pages send chat text through its content script.

Hoppscotch Extension for Firefox lets Hoppscotch-approved pages proxy requests to any URL through the extension.

Downloads supported HLS and single-file video streams from websites to your local device.

Haikyuu Wallpaper sends URLs from your browser's top sites to Google's favicon service on the new-tab page.

Hello Kitty Wallpaper sends custom shortcut URLs to Google's favicon service when its new tab page loads.

Helpjuice: Auto-Updating Knowledge Base sends scraped help desk page text to Helpjuice's article candidate detector.

Hexomatic lets configured localhost pages overwrite stored authentication values used for its API calls.

Hotmail sends Microsoft OAuth client credentials to Microsoft's token endpoint during sign-in and token refresh.

Humantic AI lets page scripts on supported sites trigger authenticated requests to api.humantic.ai.

helloNFT collects Premint project page details and sends them to its backend.

ChatGPT in Sidebar loads third-party stylesheets when its options page opens.

HaramBlur sends options-page session recordings and signed-in user email addresses to PostHog.

HD, Replay, Popout for YouTube sends popout video embed URLs to uslocaltv.appzend.net.

HEIC to JPG & PNG Converter loads Google Fonts and an MTS font from its popup/options page.

HLTB for Steam sends Steam game page titles to HowLongToBeat to retrieve completion-time data.

HOOBS Nest Sidecar injects a captured Google issueToken URL and Cookie header into the Nest page DOM.

HTML Copy copies the active tab's cloned HTML to the clipboard or a local download when you use its popup.

HTML Validator sends inspected page HTML to validator.w3.org when you request online validation.

Halloween Wallpaper sends Chrome top-sites URLs to Google's favicon service on each new-tab page.

Haloscan sends the active tab URL to its API when you open the extension popup.

Hello Kitty Live Wallpaper loads Google Fonts resources whenever its custom new-tab page opens.

Help me with - Search Gemini Anywhere sends selected or typed text from any site to Gemini for answer generation.

Hero Wallet provides a browser crypto wallet bridge without confirmed data-recipient findings.

High contrast mode - Dark mode - Eye protection applies page-wide visual filters and sends extension usage events to analytics services.

Historical U.S. Counties Auto-Checker sends genealogy-site page URLs, titles, and referrers to Google Analytics.