Browser extensions starting with C

Cookie Clicker Mod Manager injects user-configured remote mod scripts into Cookie Clicker pages.

Cookie Guard writes detected affiliate cookie details into page-visible alerts and sessionStorage.

Cool Cursors redirects Google search pages to ugnewtab.net with the user's original search query.

Copilot by Global Technology rewrites Bing-matching requests and removes CSP and X-Frame-Options responses.

Copilot for Gmail by cloudHQ sends Gmail account lists and visible message contacts to cloudHQ for checks and CRM lookup.

Copy & Paste Tabs copies open tab URLs, and optionally titles, to the clipboard when you click its Copy button.

Copy on Select can paste clipboard contents into editable fields on any website after specific mouse actions.

CopyTabTitleUrl copies tab titles, URLs, and optional active-page fields to the clipboard when the user triggers it.

Core Web Vitals Visualizer sends the active page URL or origin to the Google Chrome UX Report API after a user request.

Cornify records recent key codes on HTTP and HTTPS pages to detect the Konami sequence.

Coupons Search sets searchext.com as your default search engine, routing every address-bar query through a Yahoo-syndication redirect.

CreaSign bridges any webpage's postMessage calls to the locally installed CreaSign native app without validating the message origin.

Crosslist imports a remote SDK from app.crosslist.com into authenticated Vinted posting pages.

CrowdScrape reads page text on user request and sends extracted indicators to CrowdStrike Intelligence APIs.

Blocks trackers, cookies, cookie pop-ups, and URL tracking parameters while sending privacy signals.

Crunchyroll Enhancer - CrOptix reports certain German subtitle and watched-episode details to gateway4m.com.

Currency Helper sends searches from its new-tab page to goog.currencyhelperext.com.

Custom Cursor Changer injects cutecursors.com cursor image URLs into pages where its content script runs.

Floating Scientific Calculator sends current-page Sentry telemetry after page-triggered extension messages.

checklist for Google Tasks™ uses your Google account's OAuth token to read and write your Google Tasks lists.

CDA Downloader randomly opens short.ovh advertising tabs when you click links or its download button on CDA pages.

CSS Stacking Context inspector reads page DOM and CSS stacking-context metadata for its DevTools panel.

CTERA Edit relays page-triggered CustomEvents to a native desktop application on all websites without origin validation.

CXone Agent Click-to-Dial turns phone numbers on any page into dial links and forwards clicked numbers to the CXone agent app.

Calendar View Tab sends new-tab search terms to Yahoo with fixed tracking parameters.

Canned Responses Pro for Jira starts LogRocket session replay on Jira pages and sends Atlassian account and license metadata.

Chandler sends its stored bearer token from all-site content scripts to an API host chosen by remote config.

Chrome Unlock New Bing AI rewrites browser identity headers on Bing requests to make Chrome look like Microsoft Edge.

Cisco Web Communicator bridges any web page to the Cisco Jabber native host using only the extension's public ID as a gate.

Clarity Tab sends recent bookmark domains to Google's favicon service on its new tab page.

Click Image Download lets page-generated alt-click events trigger extension-managed image downloads.

This extension saves clipboard history so copied text can be accessed, organized, merged, and pasted later.

Close Tab by Double Right Click injects all-page click handlers that let pages trigger tab closes.

CloudGate UNO for Google Chrome sends page URLs containing cgContextId to its configured CloudGate validation endpoint.

Collaborative Whiteboard forwards user-selected image URLs to www.livepolls.app when its image context menu is used.

Comix Downloader sends a hashed ID of every comix.to profile you visit to its own server, with no opt-out.

Controls for Youtube accepts page messages for playback controls and can include stored usage stats in its uninstall survey.

Copilotly writes page-readable browser identifiers into storage on every matched website.

Cosmos Extension sends searches typed on its new-tab page to goog.cosmosextension.com.

Coupert Guard lets any website change its ad-blocking settings through a page-accessible message bridge.

Crossmark Wallet accepts same-page wallet request messages on every HTTP/HTTPS page and forwards them to its background script.

Cryplex AI Storage Node lets any website set its stored auth token and trigger node sync to app.cryplex.ai.

Ctool 程序开发常用工具 sends a persistent user UUID and tool-usage events to www.baiy.org.

Current Moon Phase uses IPinfo location data to request local moon-phase details from Moon Organizer.

chatgpt for google: search gpt removes ChatGPT's CSP and uses remote rules to hide page elements.

Chameleon contacts a GeoIP service when IP-based language or timezone spoofing is enabled.

CR7 Wallpaper HD HomePage sends new-tab search text to Google Analytics as user-search telemetry.

Cashback beruby records visits to matched advertiser sites by requesting Beruby tracking pixels.

Change Default Search Engine routes browser search terms through default-search.site and sends ad events with a persistent client ID.

Changedetection.io Website Monitor sends the current tab URL to your configured API when you add a watch.

The extension sends YouTube Music track details to artwork.boidu.dev when animated art is enabled.

ChatGPT to Markdown converts visible ChatGPT conversations into Markdown for clipboard copying or local download.

Check Competitor Stock Levels - Inventory Spy sends Amazon offer-listing details to rebelsoftwarellc.com when you click it.

Chinese Tools sends selected page text to PurpleCulture conversion endpoints when context-menu tools are used.

Citace PRO sends active-page citation details to www.citacepro.com when the user generates citations.

Clinical Notes AI registers each page URL and domain as PostHog properties from its broad content script.

CloudTalk Click-to-Call lets webpages trigger its inserted phone links to send click-to-call requests to CloudTalk.

Cluing reports page URLs, titles, and reading engagement metrics for visible text blocks to account.cluing.io.

Codes Hunter sends Roblox game activity, copied codes, searches, and a persistent client ID to Google Analytics.