Browser extensions starting with C

Cloudinary Media Inspector stores request and response headers for visited pages for local inspection.

Clown Wallet lets any website make the extension send an eth_chainId POST to a wallet RPC URL before approval.

Cnfans + rewrites CnFans product URLs to the author's affiliate ref code 37818.

CoCites [Beta] sends Google Scholar result titles to NCBI E-utilities to find matching PubMed IDs.

CoSchedule sends the current page URL, selected text, and discovered image URLs to app.coschedule.com when you open its share overlay.

Cobalt lets allowlisted websites read its full local wallet storage through external messages.

Codeforces POTD sends your Codeforces handle and streak updates to its backend.

Codental Connect sends the active WhatsApp chat phone number to Codental patient search after login.

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

CoinTool - MetaSafe accepts page messages that can approve its wallet-warning dialog.

Colada DevTools stores page-posted Colada debugging payloads in the extension's local browser storage.

Collaboration 7 sends calendar meeting subjects and attendee emails to Wildix Integration Service when creating meetings.

Collaborator Link Assistant sends domains from Google and Ahrefs pages to collaborator.pro.

Colleague AI sends selected text, page URLs, screenshots, file uploads, and grading PDFs to api.colleague.ai.

Color Picker loads Google Fonts from its popup, sending a request to Google when the extension UI opens.

ConcertPal removes Ticketmaster framing protections to load hidden pages and reuse the tmpt cookie.

Conductor Monitoring sends active account-domain page URLs to Conductor's GraphQL API for monitoring checks.

Confluence Chrome Extension - Meetical sends Google Calendar event IDs to app.meetical.io when its event widget loads.

Confluence to Markdown reads page content from Confluence tabs and saves converted Markdown locally.

WhatsApp Contact Exporter sends WhatsApp Web page telemetry to Google Analytics.

Contact Extractor automatically extracts contact details from visited pages and stores up to 2,000 records locally.

ContentStudio sends selected page and social-post content to its API for previews, short links, and publishing.

Cookie Decliner sends visible page text and the current URL from every HTTP(S) tab to carmesin.me.

Cookie Editor reads cookies for selected domains and lets users copy or export them locally.

Cookie Viewer reads and displays cookies for the current tab when its popup opens.

Cookies Transfer exports cookies for a user-entered website into a local JSON download.

Cool Papers Redirector sends selected text from any page to papers.cool when its search fallback runs.

Couponuts checks visited site domains with app.indoleads.com to find coupon offers.

Coursera Summary with ChatGPT and Take Notes signs NoteGPT API requests from bundled extension credentials.

CovidDash at Johns Hopkins University replaces browser search, homepage, and startup settings with coviddashboard.extjourney.com.

Crawl date checker for Google sends the active tab URL to Google Web Cache when checking crawl status.

Cricket Score Bar inserts Cloudinary-hosted score images into every tab after a match is selected.

Cristiano Ronaldo Insane Jump Live Wallpaper inserts unsanitized remote popup HTML into its new-tab page.

Cronofy lets Gmail pages request the stored Cronofy scheduler auth token from the extension.

Cross - Compare Amazon Prices fetches regional Amazon product pages for the current product to compare prices.

Crossbeam Copilot sends visited domains and CRM account identifiers to Crossbeam APIs for overlap lookups.

CroxyProxy Free Web Proxy Lite sends URLs you choose to open through its proxy to CroxyProxy front servers.

Crunchyroll Bilingual Subtitles sends subtitle text to Google Translate when translation is enabled.

Crypto Price Checker sends currency conversion requests with an embedded RapidAPI key to a RapidAPI fixer endpoint.

Crystal Ball sends dashboard date ranges and property selectors to app.crystalballinsight.com.

Ctrl+Tab MRU inserts current-window tab titles and tab IDs into the active webpage DOM.

Currency Exchange Rate embeds an Open Exchange Rates API key in its popup code.

Cursor Traveler: mouse move counter measures mouse movement on every page and stores daily distance totals locally.

The extension sends shopping-page product details and product links to Gobiz and Sabomall services.

cURL & WS Capture records matching HTTP and WebSocket request details locally after users grant all-URLs access.

close_tab(s) lets webpage-triggered injected controls close the current tab or neighboring tabs.

closed caption - dual subtitle viewer sends caption text to Google Translate when subtitle translation is enabled.

CookieBlock loads a GitHub known-cookie list that can affect how it classifies and removes cookies.

Custom Style Script injects user-configured JavaScript or remote script URLs into pages that match saved rules.

CR-Unblocker routes non-static Crunchyroll browsing requests through a bundled community SOCKS proxy.

Contextual Google Image Search sends selected images or image URLs to Google for reverse-image searches.

CardPointers X sends Bank of America SAMLResponse and RelayState values to ui-api.tripleup.dev during deals setup.

CapturePage captures the current page when you click it and can include the page URL or title in the saved filename.

Chatterino Native Host sends Twitch channel names and chat layout details to the local Chatterino app.

Chatslator sends supported livestream chat messages to Google Translate for automatic translation.

Conversion Plus sends Google search terms and persistent extension identifiers to conversionp.azurewebsites.net after consent.

Copy On Select automatically copies selected text from HTTP and HTTPS pages to the system clipboard.

Capital Koala sends login credentials to its API with the password embedded in the request URL.

Circle reader sends account tokens and synced reading data to circlereader.com over cleartext HTTP.

Clearly Reader sends the current page URL to trk.lesslab.net when you create or remove highlights.