Browser extensions starting with C

Copy ASCII emotes to your clipboard with a single click.

Cốc Cốc Search lets Cốc Cốc search pages read the browser's top sites list.

Cookie auto decline automatically changes consent choices by writing site cookies and localStorage.

Clears cookies and site storage for the active website with one click.

Capture selected areas of webpages and send them to print or the clipboard.

This extension checks bookmarks for invalid entries by loading them and reporting request errors.

View, search, add, edit, remove, import, and export browser cookies.

CFCA CertEnrollment.YZW Extension bridges web pages to local native messaging hosts using a caller-supplied host name with no allowlist.

CFCA CryptoKit.YZW Extension accepts a caller-supplied native messaging host name, allowing any whitelisted page to connect to any native application on the user's machine.

Checks webpages for a TCF-registered consent management platform supporting TCF v2.3.

CNFans Warm Reminder Remover rewrites shopping product URLs on CNFans, Mulebuy, and Hoobuy to add referral codes.

Shows CSS properties for page elements when you hover over them.

CWS: Chinese Dictionary + Pinyin Annotator lets matched pages ask the extension to write page-supplied text to the clipboard.

Canvas Assistant sends full page URLs from non-Canvas pages to its analytics endpoint.

Canvas Hack hides focus and visibility changes from every HTTP(S) page after paid activation.

Capfizz sentry node sends its session token to a remote-configured Capfizz mining node from the popup.

Cars Wallpaper sends new-tab search terms to qsrcfornow.com with affiliate parameters.

This extension opens a Case Status side panel inside case management software for law firm staff.

Cashback Assistant sends merchant-site visit events to Google Analytics with a persistent extension-generated client ID.

Cashback Comparison sends non-prefiltered active tab URLs to CashbackHolic for coupon badge lookups.

Chartnote removes Content-Security-Policy headers from every top-level site you visit.

Chat AI opens a cleartext WebSocket that includes the signed-in Firebase user ID.

Improves long ChatGPT conversation performance by limiting visible history and revealing older messages on scroll.

ChatGPT Prompt Assistant loads a Buy Me a Coffee image beacon on supported AI chat pages.

ChatGPT Side Panel removes frame-protection headers so ChatGPT and OpenAI pages can load inside its side panel.

Shows an estimated token count during ChatGPT conversations on chat.openai.com.

This extension adds widescreen and layout controls to ChatGPT and Poe pages.

Runs Java Web Start JNLP applications in the browser without a local Java installation.

This extension adds Stockfish-based move suggestions, engine scores, and visual chess aids on supported chess sites.

Displays an icon on sites that send a “Clacks Overhead” message.

Clarie sends your approximate location to its weather service when the new tab page loads.

This extension tracks Claude usage limits and exports Claude chats from the Claude.ai sidebar.

Filters ads, spam, and commercial listings from Marktplaats and 2dehands search results.

Cognism - Sales Intelligence Extension embeds a DataStax Langflow bearer token and sends AI prompt input to DataStax.

This extension tracks Binance crypto prices, volume, and RSI for alerts.

Pick colors from web pages and view their color codes in a popup.

Adds a warm color filter to websites to reduce blue light during dark or nighttime browsing.

This extension lets you play the Color Up game in a Chrome toolbar popup.

Pick colors from webpages and manage palettes in multiple color formats.

Reads .cbr and .cbz comic files in Chrome from a computer or Google Drive.

Commerce Cloud Recommendation Validator captures CQuotient and Salesforce Einstein request details for its tab UI.

This extension lets users edit, replace, or blur content directly on webpages.

ContentBot AI Writer sends user-triggered writing prompts from page fields to ContentBot's API.

Search selected text or image URLs from the browser context menu.

Converts WebP image files to JPG format from the browser.

CookBook Manager sends the active tab's page HTML and URL to its recipe parser when you import a recipe.

Cookie Editor lets a tumutuk.com paywall iframe enable an affiliate tag on Amazon product-page visits.

Cookie Manager Pro reads cookies for the active tab domain and lets the user export them as JSON.

Automatically copies highlighted text to the clipboard after you activate it from the browser toolbar.

Adds a right-click option to copy the text of a link.

Set customizable countdown timers for tasks, events, study sessions, deadlines, or breaks in the browser.

Cristiano Ronaldo - Cristiano Ronaldo HD wallpaper sends precise location coordinates to OpenWeatherMap for new-tab weather.

Crosslist reseller product listings across multiple marketplaces.

CrowdStrike Threat Intelligence Browser Extension scans page text for indicators and sends matches to CrowdStrike APIs.

Searches for words or phrases across all open tabs in the current browser window.

Cuponeria sends shopping-site extension page views to Google Analytics with a persistent extension UUID.

This extension adds a customizable cursor motion blur effect to websites in Chrome.

Adds customizable category tabs to Google Keep for organizing notes.

Cute Dogs Wallpaper sends new-tab search queries to cute-dogs-wallpaper-com.s1search.co.

Password Boss WebApp sends page-load and navigation telemetry from visited websites to sentry.passwordboss.com.