Contingency Zero Security Extension

Description

Required to manage your personal data securely with the Contingency Zero application. More info: https://contingencyzero.com/ The Contingency Zero Security Extension is the official companion tool for the Contingency Zero desktop app (app.contingencyzero.com). It exists for one reason: to keep your private encryption key off the website itself, so your emergency plan and estate documents stay protected by true zero-knowledge encryption even when you're working from a browser instead of your phone. === Before you start === Your Contingency Zero account and plan must first be created in the Contingency Zero mobile app — the desktop website does not support account creation. From the mobile app, generate your recovery QR code and save it to your computer using whatever method is convenient for you: email it to yourself, save it through cloud storage, transfer it over USB, or any other means you trust. === How it works === Contingency Zero protects your passwords, documents, and final wishes with end-to-end, zero-knowledge encryption — meaning only you (and the people you choose to share with) can ever read your data. Your private key lives on your mobile device, where your account was created. To access your plan on desktop: 1. Log in to app.contingencyzero.com. Once you're logged in, the extension becomes enabled for that session. 2. Click the Contingency Zero Security Extension icon in your browser toolbar. 3. Upload the recovery QR code file you saved from your mobile app. The extension decrypts your key locally, separate from the website's own code. Your plan is then read from the server in its encrypted form and decrypted inside the extension, so it becomes readable in your browser — without your private key ever being exposed to or processed by app.contingencyzero.com directly. === Why install it === Required for desktop access — without it, logging in to app.contingencyzero.com only gets you as far as an encrypted plan; the extension is what unlocks it. Keeps zero-knowledge intact — your private key is handled inside the extension, isolated from the website's page scripts, preserving the same security model that protects your data on mobile. Works with any transfer method — email, cloud storage, USB, or any other way you get your recovery QR code from your phone to your PC. Free forever — this extension costs nothing and is available to every Contingency Zero user, whether or not you have an active subscription. Purpose-built, nothing else — it only communicates with the official Contingency Zero desktop site. It doesn't track your browsing, collect analytics, or run on any other website. === Who it's for === Anyone who has already set up their Contingency Zero plan on mobile — passwords, accounts, legal documents, and instructions for their family in case of an emergency — and now wants to view or manage that plan from a laptop or desktop, without weakening the encryption that keeps it private. Contingency Zero is a secure, end-to-end encrypted app for emergency preparedness and digital estate planning. Get started by downloading the mobile app, then visit app.contingencyzero.com for desktop access.

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