Browser extensions starting with O

Open Google Maps With One Click sends Google Maps click events with a persistent browser ID to n8n.aichdi.com.

Open TortoiseSVN for Google Chrome sends matching link URLs from broad page clicks to its native TortoiseSVN host.

OpenSubtitles for Netflix stores OpenSubtitles login credentials in Netflix page localStorage.

OpenWardrobe sends the current page URL to affiliate redirect services when you click its toolbar or hover-save controls.

Outer Space sends new-tab search terms to space.outerspace-ext.com when you submit its search box.

Outlook Web Plus loads a default wallpaper image from wallpapercave.com on Outlook pages.

Override Chrome's New Tab Policy sends the configured new-tab URL to Google Forms when the user clicks Help me.

oneClipper exposes a hardcoded Google Gemini API key in a web-accessible clipping script.

open-in-overleaf sends the current arXiv abstract URL to Overleaf and its backend when you click its injected link.

Old Twitter Layout (2026) posts Twitter/X API responses and CSRF-bearing headers to page-window listeners.

oneClipper oneNote web clipper sends page or selected content to Google Gemini for AI clipping features.

OK.ru Downloader (IDL Helper) has no confirmed data-recipient findings in the available review data.

Open In IINA injects page-controlled URLs into browser-executed JavaScript when opening media links.

Open With Internet Download Manager sends selected page or link URLs to its native download-manager helper.

Open in VLC™ sends the page or link URL you choose to a local native host to launch VLC.

Open in Chrome sends selected page or link URLs to a local native-messaging helper when you use its context menu.

OverbiteWX redirects Gopher URL navigations through the Floodgap HTTPS proxy.

OFES Form Autofill loads Google Fonts from its popup while its form-filling script runs on the FEU evaluation site.

ONE ZERO קאשבק lets any webpage ask the extension to open an attacker-chosen URL in a new tab.

ORDERQC.COM sends imported marketplace listing details and user notes to orderqc.com when you add an item.

OSINT Username Search sends your Chrome profile ID to livepolls.app and uploads searched names and tags to api.imgkits.com.

OVMF_immobilier sends real-estate listing commune identifiers to mafrance.app to add scoring overlays.

OasCopy keeps OAS pages marked visible and blocks blur/visibility events while copying question text to the clipboard.

Odex - Order Hàn Quốc reports each visited hostname to api.orderhanquoc.com for remote site configuration.

Offsite - Save to monday.com ships hardcoded API and OAuth secrets used in AddOffsite and monday.com requests.

Ohmywishes sends product details and the current page URL from the active tab to Ohmywishes endpoints when clicked.

Omegle location locator sends Omegle peer IP addresses to api.ipregistry.co after the user clicks its popup.

Omnissa Experience Management sends monitored page URL paths and navigation performance/error metrics to its native host.

OndaLink lets any website frame its chat page and send your active tab URL to its backend.

One Click SEO Checker opens SEO checker pages that include the current tab's host or origin in the URL.

Online Signature Generator for Email & PDF sends your Chrome profile email to BoloForms when its popup first opens.

Opa video downloader inventories media URLs and page titles from HTTPS pages for its popup.

Open Bookmarks in New Tab rewrites some Google, Microsoft, and Baidu bookmarks through a GitHub Pages redirect.

Open Guessr Cheat reads your OpenGuessr bearer token and uses it to call account update APIs.

Open in Bohrium opens clicked GitHub notebook URLs on bohrium.dp.tech.

Open in Builtwith opens the active tab's hostname on builtwith.com when you click its toolbar button.

OpenBlock Bridge forwards page origins and full URLs to the OpenBlock wallet page during provider setup.

OpenBnB identifies your Chrome profile email to PostHog when the extension is installed.

Openwhyd track sends the active page details and selected track information to openwhyd.org when you post or search.

Oppy AI sends LinkedIn job details to Oppy's analysis API when you ask it to score a job.

OptiMalt sends Malt profile and search-analysis data to a Supabase backend when users run its optimization tools.

Option Search makes find.searchoption.net the default search provider and sends browser searches there.

Orange Juice checks Hacker News story URLs in your browser history to mark stories as read.

Orchid eBound - NICS Integration stores 4473 form details from any /portal page and copies them into CJIS NICS forms.

Orian sends Google search prompts and Gmail reply or compose content to Groq when its Groq provider is enabled.

Otio sends visited page URLs to its API to check whether they are already in your library.

OutX imports Supabase code from esm.sh into its background service worker at runtime.

Outbox for Tumblr saves outgoing Tumblr ask contents in local extension storage.

Outbrain Direct Response - Pixel Compliance Checker checks pages for Outbrain pixel status and displays results in its UI.

Outlier Finder by moreoften.io sends YouTube video metadata it scores to a Supabase database.

Over.fig forwards Figma overlay project data into the active web page.

Overlord Wallpaper sends top-site URLs from the new-tab page to Google's favicon service.

obsidian-livesync-webclip sends clipped page content and saved CouchDB Basic credentials to a configured database URL.

open-os LLM Browser Extension sends chat prompts and configured persona text to the selected Ollama endpoint.

OnlineShoppingTools queries its own coupon database on every site you visit and opens hidden background tabs to insert affiliate cookies when you copy a code.

OfficeWork sends the URL of nearly every page you visit to a third-party server and can be told to redirect your tab.

OGame Nexus reads OGame account, planet, resource, combat, expedition, and espionage data into local extension storage.

OfferAhead sends your live ChatGPT access token to its own server every time you open the popup.

Displays relevant local OPALS library catalog resources alongside Google searches.

Create, save, and collaborate on Office documents online with real-time co-authoring.