Browser extensions starting with O

This extension lets you add, manage, and switch between proxy profiles from your browser.

View 3D model files from your computer in the Chrome browser.

Omnimed-QHR authenticator forwards messages from Omnimed web pages to a local smartcard signing app without validating the request.

Open links, videos, and audio from Chrome in the IINA media player.

Open in Foxit™ Reader passes web-origin PDF URLs to a native shell command without sanitization when a custom Foxit path is configured.

Open online files in Google Drive Viewer for supported document and archive formats.

one sec intercepts tab navigation to configured websites and displays a friction screen before the user can continue.

OKIOCAM Live sets uploaded Google Drive files to public 'anyone with link' sharing without user confirmation.

OP_WALLET sends a persistent device ID and Bitcoin wallet address to its servers on every browser start.

OWASP Penetration Testing Kit accepts page bridge messages that send saved DAST scan results to the configured PTK portal.

ObservePoint Debugger captures the URL, query string and POST body of requests on tabs you debug and sends them to ObservePoint.

Omnidoc relays commands from omnidoc.fr pages to a local native host without a command allowlist.

Create and manage shopping lists with item checkoffs, categories, sync, and reminders.

This extension lets you quickly enable, disable, and manage installed browser extensions.

One-click image downloader - Grabit sends opt-in usage analytics, including domain names, to its vendor backend tied to a persistent device identifier.

Finds legal access options for research articles when you cannot access them.

Finds free, legal PDF versions of academic papers from their DOI.

Adds a context-menu option to open pages or selected text in Sci-Hub.

OpenQuiz - YT/Netflix Shadowing & Translate sends selected page text to Google Translate for automatic translation.

This extension embeds its own video player on common streaming sites and adds playback tools.

Ouriginal for Google Classroom transmits Google OAuth tokens and student profile data to its backend for plagiarism analysis.

Adds an improvement indicator to osu! profile pages based on pp and playtime.

Adds regional flags and score ranking details to osu! profiles and related pages.

Generates QR codes offline from text, selected website text, or the current tab.

Send online video and audio links from the browser to VLC media player.

OA.mg reads the active page for a DOI when clicked and opens the matching OA.mg work page.

Preview open graph data for the current page to see how links may appear when shared.

This extension brings the main Web Gateway tab to the foreground when objects open from links.

This extension provides an off-road 4x4 jeep simulator game with obstacle tracks and mountain terrain.

Ogame Infinity sends user-enabled cloud sync and PTRE integration data to getpantry.cloud and ptre.chez.gg.

Omni renders tab, bookmark, and history details into every page's DOM when its command menu is used.

This extension replaces the default browser cursor with One Piece-themed cursor designs.

Create and manage a self-custodial crypto wallet for Web3 assets and transactions.

OneScholar writes saved settings, including API keys, into page-accessible storage and form fields during backup/export.

Online Dictionary Helper fetches selected dictionary scripts from GitHub or custom URLs and runs them in its sandbox.

Accelerates and manages browser downloads with multi-threaded transfers, queues, and pause/resume controls.

This extension provides a simple notepad in Chrome for writing and saving notes.

Online PDF Converter injects a floating PDF tools button and extension iframe into every visited site by default.

Online Weather Forecast sends typed new-tab search queries to transitschedules.net before search submission.

Opens the current tab, multiple tabs, or selected page items in Firefox.

Open bookmarks in a new tab lets its bookmark proxy page redirect the current tab to a URL chosen in the page address.

Open in IE downloads a native client binary from GitHub without checksum or signature verification.

Send the current tab, links, or selected links from your browser to Microsoft Edge.

Sends links and tabs from your browser to Opera through a native client.

Opens PDF files in Adobe Reader from the browser right-click menu.

Open in VLC Media Player™ uses a native messaging host to spawn a local application with the right-clicked URL as an argument.

Open selected media links in the VLC desktop player from your browser.

OpenClaw relays CDP control of your signed-in browser tabs to a paired local automation service over an authenticated WebSocket.

OpenOffice Calc online sends every HTTP/HTTPS page URL you visit to offidocs.com with a persistent ID.

OpenWAX loads status-icon images from goonoo.github.io when you run an accessibility audit.

Opens multiple URLs from a list and can extract URLs from pasted text.

Open in IE exposes a shared DOM channel that any webpage can use to open an attacker-chosen URL in Internet Explorer.

Amazon Online Arbitrage, Wholesale, and Dropshipping sends parsed Amazon product metadata to amzscout.net.

Tracks selected OGame player information such as expedition, combat, and debris field results.

OKIOCAM Time-Lapse makes uploaded webcam time-lapse files readable to anyone with the Google Drive link.