Browser extensions starting with C

Cyberpunk 2077 Themed Homepage sends configured RSS feed URLs to api.allorigins.win when its RSS widget is used.

CÔNG CỤ ĐẶT HÀNG GIANG HUY LOGISTICS evaluates page scripts on supported shopping sites.

The extension uploads AI-chat titles, conversation IDs, and folder data to superchargeallai.com for premium cloud sync.

Smart Color Picker and Palettes places visible-tab screenshots into pages during picker mode.

css scanner can send selected page HTML and CSS to codepen.io when exporting to CodePen.

cliget captures downloadable request URLs and headers, including cookies, to generate local curl, wget, or aria2 commands.

Carbonalyser records per-site response byte totals locally while its user-started traffic analysis is running.

Chesscheat reads chess.com board positions and overlays Stockfish best-move highlights during games.

Copilot Sidebar removes Microsoft Copilot frame-protection headers so Copilot can load inside its Firefox sidebar.

ChartFox Browser Extension lets ChartFox pages read responses from non-ChartFox XHR requests.

Copy ShortURL sends the page, link, or image URL you choose to a configured URL-shortening service.

ChatGPTBox sends selected text and extracted page content to the user's configured AI provider.

Chess.com analyse at lichess sends a selected Chess.com game's PGN to lichess.org when the user starts analysis.

Cleanplaats Marktplaats filter stores marketplace listing IDs you view in local extension storage.

CDA.pl Auto Downloader PRO sends issue reports with video page and stream URLs to a Discord webhook.

CFCA CertEnrollment.IBK Extension lets IBK web pages connect to a caller-specified native messaging host.

CFCA CertEnrollment.YOCYL Extension lets allowlisted websites choose a native messaging host and relay messages through it.

CFCA CryptoKit.Induschain Extension lets allowed websites send selected payloads to a local native-messaging host.

CFCA CryptoKit.Midea V3 Extension lets scoped Midea-related sites send requests to local CFCA native messaging hosts.

CFCA CryptoKit.NCB Extension lets approved NCB web origins choose a native messaging host and forward payloads to it.

CFCA CryptoKit.YOCYL Extension lets many allowed websites choose and message a native application.

CS2 Float Checker ships a static SteamLedger API token used for its backend extension endpoints.

CSS Variables Editor collects CSS variables and page CSS-variable config from active tabs into session storage.

Calculator Extension sends searches typed on its new-tab page to brownmile.com.

Canvas Quiz Solver sends Canvas quiz question text, options, and images to its backend when users request an answer.

Capture Full Page Screenshot captures user-requested page screenshots and stores them in extension-local storage.

Capture by Tracker stores Tracker login credentials in reversible base64 and reuses them for Tracker API requests.

Capybara Live Wallpaper loads Google Fonts and sends user-added shortcut domains to Google's favicon service.

Cat wallpaper sends precise location coordinates to OpenWeatherMap for its new-tab weather widget.

Cesium sends the stored wallet public key to configured ES peers while checking for unread notifications.

Chat Translator sends Twitch and Kick chat messages to Google Translate for real-time translation.

Chat2File reads selected AI chat page content and saves it to a local export file when you ask it to.

The extension sends persistent export-usage totals to a Supabase endpoint when DeepSeek loads.

ChatGPT & Gemini File Uploader sends ChatGPT profile details to fileuploader.app and page views to Google Analytics.

ChatGPT Exporter sends PDF exports of ChatGPT conversations to GPTAha's backend for generation.

ChatGPT Sidebar Assistant sends install telemetry with IP metadata and a persistent UUID to Alibaba Cloud logging.

ChatGPT context companion sends selected page text from context-menu prompts to ChatGPT or OpenAI.

ChatGPT to Evernote sends selected ChatGPT conversation content and the user's Evernote token to chatgpt2evernote.com.

The extension syncs selected ChatGPT folder metadata, including chat IDs and titles, to Chat Power's Firebase service.

ChatGPT-The Future sends supported search-result queries to ChatGPT or OpenAI for answer generation.

ChatSider AI Copilot sends search queries and selected page text to the ChatsNow GPT endpoint.

Chatsup sends login email addresses and one-time codes to Growby in GET request URLs.

CheckFlow Browser Relay can attach its local debugger relay to sites saved in its own blocklist.

Chess Free Online sends a persistent user identifier and app visit details to bot.izibit.net when the game opens.

Chess.com Custom Pieces & GIF Background sets a fixed Chess.com referral cookie on matching pages.

Chestr sends active-page product metadata to its Chestr popup iframe when you open the extension.

Christmas Decorations Wallpaper New Tab sends your Chrome top-sites URLs to Google's favicon service.

Christmas Tree in Town Live Wallpaper inserts remote Gameograf popup HTML into its new-tab page.

Chrome Auto Refresh loads a remote Font Awesome stylesheet when its popup opens.

Cinnamoroll Cursor exposes part of its extension runtime ID in every webpage via an injected style class.

Ciphix Mendix dev tools saves Mendix passwords and bearer tokens in page localStorage as plaintext.

Citavi Picker (Beta) scans webpages for bibliographic identifiers and checks them against the user's local Citavi project.

CiteMaker CiteWeb loads a StatCounter tracking pixel from its popup over cleartext HTTP.

CityU Quick Course Adder loads its popup stylesheet from jsDelivr when the extension popup opens.

Classic Games for Chrome loads Playtik game iframes from any webpage where a user opens a game.

Claude2PDF sends the active Claude page HTML to www.aihuoji.com when exporting a conversation to PDF.

Clifl reads YouTube page data and account identifiers during server-directed viewing tasks.

ClipType inserts typing controls that load button icons from img.icons8.com on the active page.

Cloudhood can apply user-configured request headers and cookies to every URL your browser requests.