Browser extensions starting with O

This extension adds a YouTube creator assistant for channel research, translation, summaries, scheduling, and content management.

Collects product images from supported shopping sites for use in Ohoo Studio image translation and editing.

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

Manages Chrome bookmarks in a full-tab editor with drag-and-drop organization.

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

Preview osu!standard beatmaps in the browser with playback controls, mods, skins, and autoplay.

Adds a toolbar button that opens Google Calendar in a new tab.

Adds an improvement indicator metric to osu! user profile pages.

Opens URLs in specified Firefox containers through a custom protocol handler.

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

This extension helps Opera work with Chrome Web Store extension pages and Google’s update service.

This extension lets Firefox open mailto links in Outlook.com.

This extension accesses OGame pages after you manually grant site access in Firefox.

Opens downloadable documents directly in the browser instead of sending them to an external application.

Send web pages, tabs, links, and images from Firefox to Microsoft Edge via the right-click menu.

This extension adjusts old.reddit.com for easier use on mobile devices.

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

This extension previews how the current webpage may appear when shared using Open Graph tags.

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

Opens selected links from a page in new tabs using a right-click menu option.

This extension adds sidebar-related browsing options through browser menus.

Opens the current tab or selected links in Microsoft Edge from the browser context menu.

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

This extension adds a context-menu option to open images in a new tab.

This extension changes whether links open in the current tab or a new tab.

Adds a button to code hosting projects to start an Ona development environment in one click.

Opens supported images in a new browser tab from the context menu.

Adds right-click options to open pages and links in Firefox Reader View.

Adds a toolbar button that opens Google Keep in a new tab.

This extension sets orange.fr as the browser homepage and new tab page.

This extension provides an Outlook-related browser function without listed permissions or a store description.

OverbiteWX redirects Gopher URL navigations through the Floodgap HTTPS proxy.

Automatically switches YouTube videos back to the original audio track when dubbed audio is selected.

Adds zoom controls for YouTube videos up to 2x.

Turns webpages into a dark, night-friendly reading mode with dimmed colors.

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

Displays Open Graph metadata for a web page, including favicon, title, description, and image.

This extension helps maintain regular activity in OGame while running quietly in the background.

Shows the latest OMG! Ubuntu posts from the toolbar with unread counts and notifications.

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

Adds a Chrome DevTools panel for browsing and managing Origin Private File System files.

This extension adjusts webcam hardware settings from Chrome on Windows.

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

Prints shipping labels with an ORGBRO printer.

Create, edit, save, and use timestamps while watching YouTube videos.

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.

This extension emulates barcode scanning for the Odoo Barcode module.

Shows OfferUp-related marketplace content when you open its popup or new tab.

This extension enables cut, copy, and paste from menus in Office on the web.

This extension records meetings and creates AI-generated transcripts, summaries, action items, and highlights.

Converts typed text into spoken audio for offline text-to-speech use.

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

Shows fleet points for each planet or moon in OGame.

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

Automatically sends an Okta Verify push notification or SMS.

This extension makes YouTube’s scrubber button appear only when hovering over the progress bar.

Automatically fills Omegle interests and sends configured message sequences in chats.