Browser extensions starting with C

Colorway is a color-picker that, once opened on a tab, accepts page messages with no origin check to capture a screenshot or write its storage.

Enables click-to-dial for telephone numbers in Google Chrome.

Compras online Travel Club sends your saved Travel Club card number to Travel Club when you save it.

Conductor for Chrome reports every page URL you visit to its background worker and sends on-page SEO scrapes to Conductor for signed-in users.

This extension creates and tracks Consensus DemoBoard links and video recordings from Chrome.

Opens Google Contacts from the browser toolbar or a keyboard shortcut.

Marks and blocks links to user-defined content farm sites while browsing.

Convert HEIC to JPG injects a hidden onlineapp.pro paywall iframe into every page and runs a leftover dev hot-reload client on localhost.

Convert WebP images to JPG from the right-click menu or the extension window.

This extension converts PowerPoint presentations into PNG or JPEG images, one image per slide.

Automatically removes cookies when tabs close or when the browser session ends.

Automatically deletes cookies when browser tabs close, with options to keep trusted sites signed in.

CookieCloud reads all browser cookies and uploads an encrypted copy to a third-party server every 10 minutes.

This extension changes the browser pointer and lets users create custom static or animated cursors.

Copy page and link URLs to the clipboard in formats such as HTML, Markdown, or plain text.

Replaces country-code abbreviations with flag emoji using a Twemoji-based font.

Country Flags & IP Whois loads a GeoLite2 database from a CDN without integrity checks to resolve page IP addresses to countries.

This extension lets users receive CrisisGo alerts and messages in Chrome.

This extension turns the new tab into an animated Cristiano Ronaldo wallpaper with shortcuts and widgets.

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

Crunchbase sends LinkedIn parser errors, including page DOM snippets and URL context, to Sentry.

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

This extension provides Twitter cleanup tools for tweets and likes.

Automatically tests and applies coupon codes at checkout for supported online stores.

Add custom CSS to individual websites through a simple per-domain editor.

Manage other Chrome extensions from the current tab with quick on/off controls.

This extension lets you personalize browser scrollbar colors, width, and visibility.

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

Mouse Cursor - Custom Cursor injects cursor-image URLs from cutecursors.com into every matched page.

Measures page elements with draggable, resizable rulers and grid lines.

SAP Build Process Automation extension captures page content, cookies, and screenshots and sends them to the local SAP desktop agent.

cat-catch lets any HTTP(S) page send background commands that can turn on auto-download and queue media URLs.

Enables code copying and article viewing tools on developer and blog sites.

color picker for website - monster pick contacts colorpicker.monster on install/update and can open a server-provided tab.

Adds extra features and customization options to csTimer for speedcubing sessions.

Customizes webpage scrollbar colors and lets users choose default, thin, or hidden scrollbars.

Colorpick Eyedropper ships a hardcoded Google Safe Browsing API key in its bundle that any user can read.

Copyfish routes images through a public CORS proxy and sends tab screenshots to a third-party OCR service via a hardcoded shared API key.

Cashback Assistent von Shoop.de injects a version meta tag into every page and sends analytics to Google via a hardcoded API secret.

Saves frequently used text snippets for quick pasting into web page forms.

Choose and copy color values from a popup color picker UI.

Adds chat replay viewing for selected YouTube stream archive videos.

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

This extension lets you adjust website audio with an equalizer, bass boost, treble controls, and presets.

This extension takes screenshots and attaches them to CA Service Desk tickets.

The extension lets any hebbank.com page connect to an arbitrary native messaging host on the user's OS without validation.

CFCA CertEnrollment.UD Extension bridges CFCA web pages to native messaging hosts without validating the caller-supplied host name.

CFCA CryptoKit.SDRCB Extension bridges sdebank.com pages to local native messaging hosts without validating the host name supplied by the caller.

CFCA CryptoKit relays messages from yljr.com pages to a native messaging host named by the page.

Submit competitive programming solutions to Codeforces and CSES from VS Code.

This extension turns LinkedIn connections into an organized CRM with contact enrichment tools.

This extension displays configurable CSS grid overlays with breakpoints, columns, gutters, and margins.

CSS Scan fetches stylesheet URLs through its background page and writes the responses into a page-readable iframe.

Adds a DevTools sidebar for finding and copying CSS selectors from selected page elements.

Captures CSS selectors from page elements and highlights matching elements for copying.

Helps users manually find CSS selectors on web pages.