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Install and download core wallet extension
Core wallet extension install and download guide
Open Chrome Web Store directly in your browser. Search for the specific plugin title or use the URL provided by the project's official site. Click "Add to Chrome." A dialog box will appear listing the permissions the plugin requires; review them, then confirm by clicking "Add extension." The process is identical for a brave extension or for Edge – those browsers also support Chrome’s download Chrome store catalog natively. No restart is required; a toolbar icon will appear immediately.
If you prefer a different browser, the plugin is also offered as a firefox extension. Visit the Firefox Add-ons store, paste the plugin name, and authorize the install. The codebase is identical to the Chrome version, meaning all features, from key management to transaction signing, behave identically across browser engines. For users on Chromium forks like Brave or Edge, the chrome web store remains the fastest deployment path; just ensure your browser’s “allow extensions from other stores” setting is active.
After the plugin activates, pin it to your toolbar for quick access. The install process consumes roughly 2–4 MB of disk space. No additional software is needed; the plugin runs completely within the browser sandbox. If you encounter a permissions warning during the download Chrome procedure, verify the plugin's developer signature matches the official source listed on the project’s GitHub repository. For the firefox extension, the same verification applies via Mozilla’s signed add-on system. Once deployed, the plugin begins its background sync without interrupting your browsing session.
Install and Download Core Wallet Extension
Begin by opening the Chrome Web Store in your Chrome browser. Search for "Core" and select the official wallet application developed by Ava Labs. Click "Add to Chrome" to trigger the automated setup process. This plugin functions as a self-custodial solution for managing assets on the Avalanche blockchain, including custom Ethereum Virtual Machine (EVM) subnets. For users on Brave, the same Chrome Web Store listing works flawlessly; Brave is Chromium-based, so it accepts the same plugin without compatibility issues.
If you require this application for the Firefox browser, avoid using the Chrome Web Store. Instead, navigate directly to the Firefox Browser Add-ons portal. Search for the official "Core Wallet import wallet" plugin and select "Add to Firefox." The Firefox extension is maintained separately but offers identical functionality, including native Ethereum and Avalanche C-chain support. After installation, the icon appears in your toolbar, and you can create a new wallet or import an existing seed phrase. On Edge, the process mirrors Chrome: open the Edge Add-ons store or the Chrome Web Store (Edge allows Chrome Web Store downloads) and add the plugin.
For a manual setup, avoid relying on third-party websites. Always fetch the plugin from the official Chrome Web Store listing or the Firefox Add-ons repository. The Brave extension, for instance, can also be installed by enabling "Load unpacked" after downloading the source code from the Core GitHub repository. This method is advanced but ensures no tampered code. After the plugin is added, you must approve specific permissions, such as reading clipboard content for pasting private keys and accessing site data for blockchain interactions. Never unsafely review these permissions; they are necessary for transaction signing and network switching.
Once the setup is active, the icon changes to a purple "C" in the browser toolbar. If you encounter any failures during the process, check your browser’s setting to ensure third-party add-ons are allowed. For Chrome, go to chrome://extensions and verify the Core plugin is toggled on. On Edge, navigate to edge://extensions. For Brave, open brave://extensions. The Brave extension specifically requires you to enable "Allow access to file URLs" if you plan to interact with local dApps. If the plugin fails to load, delete the corrupted version and re-initiate the download from the official source.
Security warning: always verify the publisher ID. For the Chrome Web Store, the developer should be "Ava Labs". For the Firefox extension, check for "Ava Labs Inc.". Counterfeit plugins often misspell these details or have zero installer downloads. After installation, test the plugin by connecting it to app.avax.network. If the plugin does not auto-detect the Avalanche network, manually add it via the network settings within the plugin interface. This step confirms a genuine setup. Never input your seed phrase into any popup that appears outside the plugin itself.
Q&A:
I downloaded the wallet extension file, but my browser says it can’t install it because the file is corrupted or the format is wrong. What am I doing wrong?
This usually happens if you downloaded the wrong file type for your browser. Core wallet extensions come in specific formats: `.crx` for Chrome and Chromium-based browsers (like Brave or Edge), and `.xpi` for Firefox. If you grabbed a `.zip` or an `.exe` file by mistake, the browser won't know how to handle it. Go back to the official download page and look for the correct format for your browser. Also, double-check that the download finished completely—a partial download (due to a bad internet connection) can make the file look corrupted. If you are using Chrome, drag and drop the `.crx` file directly into the extensions page (`chrome://extensions/` with "Developer mode" enabled) rather than double-clicking it.
After installing the wallet extension, it asks me to create a new wallet or import one. I already have an existing wallet on another device. How do I safely restore it using the extension?
You can restore your existing wallet by using the "Import Wallet" option inside the extension. You will need your secret recovery phrase (usually 12 or 24 words) that you wrote down when you first created the wallet. Type those words into the extension exactly as they appear, in the correct order, with spaces. Make sure you are on a private computer—do not do this on a public or shared device. Once imported, your transaction history and balances should appear. If the extension asks for a keystore file or a private key instead of a phrase, and you only have the phrase, look for an option that says "Seed phrase" or "Mnemonic phrase." Be careful: never type your recovery phrase into any website, only into the extension window itself.
I installed the core wallet extension, but now my browser feels slow and pages are taking a long time to load. Could the extension be causing this?
Yes, a wallet extension can slow down your browser, but it is not common for a properly built extension. One reason might be that the extension is constantly trying to sync with the blockchain or scanning every page you visit for connected dApps. To check, open your browser's task manager (in Chrome, press Shift + Esc) and look for "Core Wallet" or its process. If it is using a high percentage of CPU or memory, go to the extension’s settings and look for options like "Background sync" or "Auto-connect to websites" and disable them. Another cause could be that you have multiple wallet extensions running at the same time. Try disabling any other crypto extensions temporarily to see if performance improves.
I tried to send tokens using the core wallet extension, but the transaction has been stuck on "pending" for hours. How do I fix this?
A pending transaction usually means the network gas fee (transaction fee) you set was too low for current network traffic. The extension shows a recommended fee based on recent blocks, but if the network gets busy right after you hit send, your transaction can get stuck. First, open the extension and find your transaction history. Click on the pending transaction—there might be a "Speed up" or "Cancel" option. Speeding up will resend the transaction with a higher fee. If you cannot speed up, you may have to wait for it to fail on its own (which can take hours or even days). To avoid this in the future, always check a site like Etherscan or your network's gas tracker before sending, and choose a fee slightly higher than the current average.
When I click "Download" for the core wallet extension on the official website, nothing happens. The button just greys out or does nothing. Any ideas?
This is often a browser pop-up blocker or a security flag interfering with the download. Check your browser's address bar for a small icon (like a shield or a blocked pop-up icon) and allow pop-ups from the official site temporarily. Another common issue is that your browser is not updated to a recent version—older versions may not support the extension format. Try using a different browser: if you are on Firefox, try Chrome, or vice versa. If you are using a mobile browser, note that most core wallets are desktop extensions and may not work on mobile browsers like Safari or Chrome for iOS. You might need to use the desktop version of the browser on a computer to download the file.
I downloaded the core wallet extension from a third-party app store because the official website was loading slowly. Is it still safe to install, or should I delete it and wait for the official download?
You should immediately delete that third-party download and only obtain the extension from the official project website or a verified official browser store (like the Chrome Web Store or Firefox Add-ons page linked directly from the project's homepage). Third-party app stores or direct download links from forums can easily distribute modified versions of the software. Attackers often repackage a legitimate extension with hidden scripts that steal your private keys or seed phrase the moment you create or import a wallet. Even if the official site is slow, waiting an extra ten minutes is much safer than risking permanent loss of your funds. After deleting the suspect file, run a security scan on your computer and then proceed only with the official source.