Browser extensions starting with C

Cookie Tool copies the active page's cookies to the system clipboard when the popup button is clicked.

CoolStart loads third-party stylesheets and fonts whenever it opens its replacement new tab page.

Coursera Dual Subtitles sends Coursera page host, path, and title to Google Analytics when its subtitle overlay renders.

Creator Studio Extension lets MSN pages request your logged-in Medium RSS feed through its browser bridge.

Criminal IP: AI-based Phishing Link Checker sends visited HTTP(S) hosts to Criminal IP and DNS lookup endpoints.

Cristiano Ronaldo Wallpaper loads Google Fonts from its new-tab page on each new-tab navigation.

cpdown reads the active tab's page content when you ask it to copy the page as Markdown.

The extension scans page text on every site to detect adult content and records matching hostnames locally.

ClipSave Facebook Video Downloader opens clipsave.net with encoded Facebook video links when users click Download.

CyberGhost Cookie Cleaner shows whitelisted domains through Google's favicon service.

Claude Usage Tracker stores Claude prompt and request details in local debug logs whenever it runs.

Clipboard2File reads clipboard images or text after file-input clicks and prepares them as files for upload.

ChatGPT in Sidebar loads third-party stylesheets when its options page opens.

Country Flag + records each site's server IP locally and can send derived map coordinates to Yandex when enabled.

Check4Change sends monitored page URLs and selected page text to check4change.com for VIP email alerts over HTTP.

CAD SCOUT 3Dfindit reads search text or page titles from visited sites and sends matching searches to PARTcommunity.

CFCA CertEnrollment.BOCD Extension lets approved BOCD banking sites talk to a native certificate host.

CFCA CertEnrollment.BankOfLuoYang Extension lets approved banking sites send native-messaging requests to a local host.

CFCA CertEnrollment.XIBank Extension lets XIB pages choose a native messaging host and forward payloads to it.

This extension supports certificate application functionality in Chrome.

CP Calendar fetches coding contest listings from the Clist API with an embedded API key.

CS2 Case Stats fetches Steam inventory history pages and stores parsed case-opening results locally.

Can I React? sends YouTube video IDs and channel URLs to api.canireact.com for reaction guideline lookups.

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

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

ChatGPT Translator sends text entered in its popup to OpenAI for translation.

ChatGPT and AI Detector by ZeroGPT.cc sends selected page text to zerogpt.cc when its popup opens.

ChatGPT to PDF sends ChatGPT conversation HTML and page metadata to chatgptpdf.tech when exporting PDFs or DOC files.

ChatPDF - AI for Documents loads a remote Imgkits image on matched PDF pages, sending normal request metadata.

ChatSearch: ChatGPT for Search Engine (GPT4) logs search prompts with IP-derived fields and a UUID to Alibaba Cloud.

The extension lets TikTok and Instagram page scripts request downloads and settings changes through its message bridge.

Checklist sends user-entered checklist and section names to Amplitude analytics.

Christ-Centered sends precise browser geolocation coordinates to OpenWeatherMap for its new-tab weather widget.

Chrome Locker initializes its site-lock password to the hardcoded default value "password".

Chrome Step Recorder records clicks, form changes, page details, and visible-tab screenshots while recording is enabled.

Citation Generator: InText sends user-entered website citation URLs to public CORS proxy services.

Classic Minesweeper Offline Game loads popup and options UI images from raw.githubusercontent.com.

Clear Website Cache can clear saved passwords for all websites when its password option is unchecked.

Click-to-Call for Web and CRM opens caller phone numbers in a cleartext Whitepages lookup URL.

Clip To Workflowy sends selected page text plus tab titles and URLs to Workflowy when you clip through its API mode.

Clipboard Manager records copied and pasted text from every HTTP and HTTPS page into local extension storage.

CoPilot EveryWhere removes Copilot security headers so its pages can be embedded by the extension.

ComedyTab sends new-tab search queries and partner identifiers to find.wsrc-now.com.

Commanders Act Assistant reads cookies and page URLs from every tab every 4 seconds and sends them to privacy.trustcommander.net.

Comment Scraper replays Facebook GraphQL requests to export comment text, author details, attachments, and timestamps.

Competition Meter sends product images to Google Cloud Vision when users click its Inspect Product button.

Contextual translator opens Google Translate with selected text embedded in the page URL.

Control for Transmission sends Basic Auth credentials to user-configured Transmission RPC endpoints over HTTP.

Convert PDF to DOCX uploads user-selected PDFs and profile metadata to convertpdftodocx.com for conversion.

Core SERP Vitals sends Google search result URLs to the Chrome UX Report batch API.

Cristiano Ronaldo CR7 Iconic Gaze sends saved new-tab shortcut URLs to Google's favicon service.

Change Geolocation (Location Guard) injects code into pages to replace browser geolocation results with configured coordinates.

Cookiebro sends cookie domain names to DuckDuckGo when it displays remote favicons in cookie editor and log pages.

Calculator Whiz & Custom Web Search sends homepage search terms to Yahoo Search.

cat-catch-re-tiktok records media request URLs and selected headers across sites, including cookies and authorization headers when present.

CDA Downloader opens short.ovh tabs during most CDA.pl link clicks and some download clicks.

CopyTables reads selected table content and clipboard HTML to format copied tables locally.

Coloriage Plus sends a persistent extension ID and install timestamp to coloriage.azurewebsites.net on Google searches.

ContextSearch web-ext lets web pages prompt users to save attacker-supplied search templates through its add-engine page.

This extension launches EndNote’s reference capture process from article webpages.