Browser extensions starting with C

CXone Agent Click-to-Dial turns phone numbers on any page into dial links and forwards clicked numbers to the CXone agent app.

Calendar View Tab sends new-tab search terms to Yahoo with fixed tracking parameters.

Canned Responses Pro for Jira starts LogRocket session replay on Jira pages and sends Atlassian account and license metadata.

Chandler sends its stored bearer token from all-site content scripts to an API host chosen by remote config.

Chrome Unlock New Bing AI rewrites browser identity headers on Bing requests to make Chrome look like Microsoft Edge.

Cisco Web Communicator bridges any web page to the Cisco Jabber native host using only the extension's public ID as a gate.

Clarity Tab sends recent bookmark domains to Google's favicon service on its new tab page.

This extension saves clipboard history so copied text can be accessed, organized, merged, and pasted later.

Close Tab by Double Right Click injects all-page click handlers that let pages trigger tab closes.

CloudGate UNO for Google Chrome sends page URLs containing cgContextId to its configured CloudGate validation endpoint.

Collaborative Whiteboard forwards user-selected image URLs to www.livepolls.app when its image context menu is used.

Comix Downloader sends a hashed ID of every comix.to profile you visit to its own server, with no opt-out.

Controls for Youtube accepts page messages for playback controls and can include stored usage stats in its uninstall survey.

Copilotly writes page-readable browser identifiers into storage on every matched website.

Cosmos Extension sends searches typed on its new-tab page to goog.cosmosextension.com.

Coupert Guard lets any website change its ad-blocking settings through a page-accessible message bridge.

Crossmark Wallet accepts same-page wallet request messages on every HTTP/HTTPS page and forwards them to its background script.

Ctool 程序开发常用工具 sends a persistent user UUID and tool-usage events to www.baiy.org.

Current Moon Phase uses IPinfo location data to request local moon-phase details from Moon Organizer.

chatgpt for google: search gpt removes ChatGPT's CSP and uses remote rules to hide page elements.

CR7 Wallpaper HD HomePage sends new-tab search text to Google Analytics as user-search telemetry.

Cashback beruby records visits to matched advertiser sites by requesting Beruby tracking pixels.

Change Default Search Engine routes browser search terms through default-search.site and sends ad events with a persistent client ID.

Changedetection.io Website Monitor sends the current tab URL to your configured API when you add a watch.

The extension sends YouTube Music track details to artwork.boidu.dev when animated art is enabled.

ChatGPT to Markdown converts visible ChatGPT conversations into Markdown for clipboard copying or local download.

Check Competitor Stock Levels - Inventory Spy sends Amazon offer-listing details to rebelsoftwarellc.com when you click it.

Chinese Tools sends selected page text to PurpleCulture conversion endpoints when context-menu tools are used.

Citace PRO sends active-page citation details to www.citacepro.com when the user generates citations.

Clinical Notes AI registers each page URL and domain as PostHog properties from its broad content script.

CloudTalk Click-to-Call lets webpages trigger its inserted phone links to send click-to-call requests to CloudTalk.

Cluing reports page URLs, titles, and reading engagement metrics for visible text blocks to account.cluing.io.

Codes Hunter sends Roblox game activity, copied codes, searches, and a persistent client ID to Google Analytics.

Compresses PDF files to smaller sizes and lets users save the results locally or to Google Drive.

Consenter Einwilligungsagent exposes its stored consent settings to scripts on any website through a message bridge.

Console Wallet sends each active page hostname to its own phishing-check API.

Contacts & Group Number Export for WhatsApp reads WhatsApp Web contacts and group metadata when the user runs an export.

Contador de Seguidores sends selected Instagram account details to Invertexto endpoints.

ControlUp Enrich sends page and user context telemetry to ControlUp while scanning supported pages for device matches.

Copy All URL's 2.0 statically configures a redirect for yt3.ggpht.com requests through youtube.vulpine.email.

Copykiller sends user-selected page text to copykiller.com for plagiarism and AI-generation checks after submission.

Cristiano Ronaldo (CR7) MeaVana sends public IP addresses and Urban Dictionary searches to third-party APIs over HTTP.

Cryplex AI Storage Node lets any website set its stored auth token and trigger node sync to app.cryplex.ai.

Color Picker For Firefox captures the visible tab when you start picking a color.

Click and Read extracts scholarly identifiers from web pages and sends them to configured resolver services.

Channel Blocker loads Google Fonts stylesheets from its extension pages when those pages open.

CFCA CertEnrollment.CZCB Extension bridges web pages on czcb.com.cn to a local native PKI application using caller-supplied host names.

Canvas GPA Calculator checks every visited site for a Canvas API endpoint before saving the first Canvas domain it finds.

Canvas downloader. Find and export. reads canvas image data and source URLs from matched pages on request.

Chat GPT Extension loads Font Awesome CSS from cdnjs.cloudflare.com when its popup opens.

Chatterclock reads ChatGPT conversation requests and cookies locally to update per-account message counts.

Citationsy - Cite Websites and Papers sends the active tab URL or extracted DOI to Citationsy when you use the popup.

Cities HD Backgrounds in Your New Tab sends search-box queries to spntextension.com.

Classifieds List sends new-tab search terms to classifiedslist.org and calls GeoIP2 to derive the user's city and state.

Claude Usage Meter reads Claude.ai organization and usage-limit data to show local usage status.

Claude to PDF, Word and Google Docs reads your Chrome profile email on install and sends it with a generated ID to Thinksolv.

Color Finder reads page color styles on all HTTP/HTTPS pages and sends the palette to its extension popup.