Browser extensions starting with C

CondividiStudioWeb reads DOM data on Italian government tax portals and forwards local download file paths to a native messaging host.

Convert PDF to Word uploads selected documents and conversion task details to qwerpdf servers.

Copy All Urls copies the titles and URLs of tabs in the current window to the clipboard.

Copy as Plain Text lets webpages update its paid license state through a page-dispatched Paddle event.

Corgi AI ships hardcoded Voicemaker and Google Analytics credentials in its extension bundle.

Shows a country flag for the active website based on the server’s location.

Cristiano Ronaldo Wallpaper sends top-site URLs from its new-tab page to Google's favicon service.

Cute Cats & Kittens Wallpaper reads Chrome's most-visited sites to show them on its new-tab page.

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

ChatGPT in Sidebar loads remote stylesheets from Cloudflare CDN and jsDelivr when its options page opens.

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

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.

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

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

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.

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.

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.

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

CoRecruit sends recruiting-site contact IDs and phone numbers to Quil when creating meetings.

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

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

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.

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

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

Crunchyroll Comments sends Crunchyroll watch and series page URLs to restore.crunchycomments.com.

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

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

The extension bridges scoped bank and CA web pages to native messaging hosts, but accepts the host name from the caller without validation.

Calligra online - office, graphics & email sends visited page URLs to OffiDocs with a persistent extension-generated username.

Cashback service Paidwork can send its stored Paidwork user ID to a page-controlled URL after a click.

The extension sends a persistent extension ID, page origins, search terms, and SERP events to Google Analytics.

Cat Tab Cursor sends bookmark URLs to Google's favicon service and submits new-tab searches to cattabsearch.com.

Change My Location sends first-run geolocation coordinates to Google Maps Geocoding from its popup.

Chat Exporter accepts Notion tokens from page messages and sends exported Gemini chats to Backrun's Notion API.

Chat and Meet for Google fetches remote message HTML from jitt.wwevents.fun and renders it in extension pages.

ChatGPT Prompt Plus loads a prompt-picker icon from Firebase Storage on ChatGPT pages.

ChatGpt VPN - VPN for ChatGpt Ai routes selected domains through bundled proxy servers with hardcoded credentials.

Check US Visa Slots sends AIS appointment details and an appointment-form screenshot to app.checkvisaslots.com.

ChessExpert lets matched pages request a visible-tab JPEG screenshot through its page-to-extension event bridge.

Christmas Wallpaper New Tab sends displayed top-site URLs to Google's favicon service on the new-tab page.

Chrome reader mode sends the current page URL to a Google Forms endpoint after low reader-mode ratings.

CiteMaker CiteWeb sends login credentials to citemaker.com using GET requests.

Click-to-call для MANGO OFFICE sends the active tab's domain to Mango Office servers each time a call is initiated.

Clipper sends saved clips with the active tab title and URL to the Clipper backend.

Collage - Debate Card Cutter and Library imports clipboard HTML into its library and saves it for later restores.

Comment Exporter - Extract Comments reads Facebook comment data for local export after the user starts an export.

Comment Exporter for YouTube sends selected video IDs to backup comment servers when YouTube's direct export fails.

Comment Stack records its extension UI pages and sends DOM snapshots and input events to tglens.tabgraf.com.

CompanyCam rewrites Facebook, Instagram, and QuickBooks CSP headers to allow inline and eval scripts.

Convert PDF to Word redirects every new tab to the remote freepdfconversion.com converter page.