Browser extensions starting with O

Opens the original Chrome new tab page when another extension has replaced it.

Removes ads and upgrade banners from Outlook Mail in the browser.

OwlApply sends job descriptions, page URLs, and application question details to api.owlapply.com for analysis and autofill.

OpenVideo - ad-free streaming collects video metadata from pages and sends it to its hosted playback frame.

Open Subtitles sends the active page origin to gqlos.plus-sub.com after subtitle file loading or selection.

Ogame Infinity syncs configured OGame profile data to Pantry and sends PTRE activity or report imports when enabled.

Changes Facebook’s user-agent string to show the pre-September 2020 layout.

Captures and decodes marketing-technology events in browser DevTools for debugging and QA.

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

This extension lets you manually override a webpage’s text encoding from a toolbar popup.

one sec exposes its encoded extension runtime ID to every visited page.

Adds an IDE-like code tree and navigation tools to GitHub repositories.

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

This extension finds direct video sources in accessible OnlyFans posts and downloads supported videos.

Opens Instagram images in a new tab from the Instagram website.

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

Adds a summoner search bar to OP.GG match history pages.

Observe.AI Screen Recording sends active-tab details and redaction results to a local Observe recorder service.

Toggle Odoo developer modes quickly with keyboard shortcuts or the toolbar icon.

Office Tools sends searches typed on its new-tab page to find.digital-marketing-ads.com.

Book desks and plan office days from within Google Calendar.

This extension checks ABV Mail inboxes and shows notifier access for up to six saved profiles.

Offsets new Google Calendar event start times by a configurable number of minutes.

Restores an old-style VK interface with a Gold version that includes fixes and settings options.

Ome.tv Automator sends Ome.tv peer IP addresses to freeipapi.com for location lookup.

Omegle Alternatives removes frame and cross-origin security headers for pages opened by configured chat and payment sites.

OmniTab New Tab sends the active tab URL to api.omnitab.link when its popup opens.

Searches dozens of websites from a customizable one-click search interface.

On Page SEO Checker reads URL, metadata, headings, links, images, and structured data from pages when its side panel opens.

One Click Add Parcel - WePost sends supported shopping-page URLs and parcel tracking numbers to www.wepost.com.my.

Keeps configured domains open in only one browser tab by reusing an existing matching tab.

One-Click Image Saver lets webpages trigger image downloads through synthetic shortcut clicks.

One-click file attachment by file.kiwi lets localhost pages insert text into a user-selected editable field.

Provides one-click shortcuts to common web actions and online services.

OneClick sends LinkedIn profile details and email address to PostHog after reading LinkedIn cookies on job and feed pages.

OneNav sends each displayed saved bookmark URL to favicon.png.pub when loading favicons.

View and navigate MBOX email files and attachments without installing a desktop email app.

This extension opens an AI assistant in a Chrome sidebar for writing, translating, coding, and research.

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

Switches between recently used Chrome tabs with a keyboard shortcut.

Opens new tabs immediately after the current active tab.

New tabs opened from the current tab appear immediately to its right.

Open the current page URL in a selected Semrush section with one click.

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

Opens image files directly in Photopea from the browser.

Open the current tab or a selected link in a private window from the browser toolbar, context menu, or shortcut.

This extension converts hyperlinks on a page to open in new tabs.

Changes web page text to the OpenDyslexic font to make online reading easier.

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.

Shows fiat prices in Bitcoin or sats while you browse shopping and service pages.

Suspends inactive tabs to reduce Chrome memory use and keep browsing responsive.

Shows a new outdoor and camping photo each time you open a new tab.

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.

Moves YouTube playback controls outside the video area for a cleaner view.

This extension provides access to the OvO 2 platformer game in the browser.

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

Request movies and TV shows from supported media sites through Overseerr or Jellyseerr.

This extension adds access to an OxaPay custodial crypto wallet in Chrome.