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	<updated>2026-05-27T21:29:08Z</updated>
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		<id>https://transcrire.histolab.fr/wiki/index.php?title=Utilisateur:MammieColechin&amp;diff=382853</id>
		<title>Utilisateur:MammieColechin</title>
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		<updated>2026-05-13T21:42:52Z</updated>

		<summary type="html">&lt;p&gt;MammieColechin : Page créée avec « &amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;img  width: 750px;  iframe.movie  width: 750px; height: 450px; &amp;lt;br&amp;gt;Haha wallet extension setup and main features guide&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Haha wallet extension... »&lt;/p&gt;
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&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;img  width: 750px;  iframe.movie  width: 750px; height: 450px; &amp;lt;br&amp;gt;Haha wallet extension setup and main features guide&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Haha wallet extension setup and main features guide&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Download the official build only from the Chrome Web Store or Firefox Add-ons repository. Any other source risks a malicious fork. After installation, pin the icon to your toolbar. Click it, then select “Create a new account.” Write down the 12-word recovery phrase on paper–never store it digitally or take a screenshot. This phrase is your sole backup for regaining access; without it, all assets are permanently lost.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Once the account is active, navigate to Settings → Networks. Add custom RPC endpoints for any EVM-compatible chain you intend to use (e.g., Binance Smart Chain, Polygon, Arbitrum). Manually input the chain ID, RPC URL, and token symbol for each network. This step is mandatory for interacting with dApps on non-default chains. For token management, use the “Import Tokens” function by pasting the contract address; the symbol and decimals are fetched automatically.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The built-in swap aggregator compares liquidity across multiple decentralized exchanges in real time. To execute a trade, select the source and target assets, review the slippage tolerance (adjust it below 1% for stable pairs), and confirm the transaction. Each swap requires a gas fee in the native currency of the active network. For advanced users, enable “Hardware Wallet Integration” under Security &amp;amp; Privacy–this pairs with Ledger or Trezor devices for signing transactions while your private keys remain offline.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Transaction history is logged locally, not on a server. To clear it, go to Settings → Advanced → Clear Activity Tab Data. Enable “Phishing Detection” to block known malicious domains automatically. For maximum protection, disable “Automatic Token Allowance Approvals” and manually approve each dApp’s spending limit only to the exact amount you are trading. Regular audits of connected sites under “Connected dApps” prevent unauthorized access.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Haha Wallet Extension Setup and Main Features Guide&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Use the official Chrome Web Store or Firefox Add-ons portal exclusively for installation; locating the app via search engine results risks counterfeit clones that siphon private keys. After adding the plugin to your browser, click its icon and select &amp;quot;Create a new vault.&amp;quot; Write down the twelve-word recovery seed on paper only–never store it in a cloud service, screenshot, or digital note. Test restoring the vault with your seed immediately inside the same browser session to confirm you copied every word in the correct sequence. This verification step takes three minutes but eliminates the primary failure point: lost access due to mistyped or misplaced mnemonics.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Parameter&amp;lt;br&amp;gt;Specification&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Blockchain networks supported at launch&amp;lt;br&amp;gt;Ethereum, BNB Smart Chain, Polygon, Arbitrum One, Avalanche C-Chain&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Seed phrase format&amp;lt;br&amp;gt;BIP-39, 12 words&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;DApp connection type&amp;lt;br&amp;gt;EIP-1193 provider injection&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Transaction preview&amp;lt;br&amp;gt;Gas fee estimation + simulated outcome before signing&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Hardware device linking&amp;lt;br&amp;gt;Ledger Nano S, Ledger Nano X via U2F&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Activate the built-in phishing detector under Settings → Security before interacting with any decentralized application. This feature cross-references every URL you approve against a locally stored blacklist updated every four hours from community-reported malicious sites. Within the same menu, enable &amp;quot;Contract Allowance Limits&amp;quot; to set a maximum token spend approval of 500 USD equivalent per transaction, preventing unlimited ERC-20 approvals that aggressive smart contracts exploit. For network switching, the interface automatically populates RPC endpoints for every supported chain from a verified registry, meaning you never manually paste arbitrary node URLs that might record your IP or inject malicious payloads. The swap module directly aggregates routes from 0x and 1inch, executing trades without sending tokens through an intermediary custodial server.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;How to Install the Haha Wallet Extension from the Chrome Web Store&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Open the Chrome Web Store directly at chrome.google.com/webstore and search for &amp;quot;Haha Wallet&amp;quot; in the search bar in the upper-left corner of the page. Locate the official listing verified by the Chrome Web Store&amp;#039;s &amp;quot;Featured&amp;quot; badge. Click the blue &amp;quot;Add to Chrome&amp;quot; button on the right side of the extension&amp;#039;s card. A permissions dialog will appear–review the requested access (e.g., &amp;quot;Read and change your data on all websites&amp;quot; is standard for transaction signing). Click &amp;quot;Add extension&amp;quot; to initiate the download. Monitor the top-right toolbar for the new icon; a pop-up window will automatically open upon successful installation, prompting you to either create a fresh vault or import an existing recovery phrase. If the pop-up does not appear, manually click the puzzle piece icon in the toolbar, pin the newly added tool, and then click its icon to launch the onboarding sequence.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;After the download completes, navigate to the extension&amp;#039;s pop-up by clicking its icon. Select &amp;quot;Create a new vault&amp;quot; and adhere to the on-screen instructions: assign a strong password exceeding 12 characters with mixed case, numbers, and symbols, then store the provided 12- or 24-word seed phrase offline using a steel plate or fireproof safe–do not photograph it or paste it into any digital document. Confirm the phrase by selecting the words in the correct order. Once verified, the vault initializes with zero balance. For security, immediately disable the &amp;quot;Allow Automatic Website Access&amp;quot; toggle in the extension&amp;#039;s settings found under the gear icon on the main interface, as this prevents malicious sites from triggering unauthorized prompts. Test your installation by visiting a testnet dApp like Chainlist.org; if the tool auto-connects without a manual click, revisit the permission settings and revoke any site-specific grants from the list.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Creating Your First Wallet: Seed Phrase Generation and Backup Best Practices&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Only use a hardware device or an open-source, audited tool running in a sandboxed, offline environment to generate your seed phrase. Generating it on a connected device or through a browser page exposes you to keyloggers, clipboard hijackers, and network sniffers. The secure method is to boot a dedicated Linux distribution from a USB drive, disable all networking, and then run a trusted generator like seedpicker.net (downloaded offline) or use the entropy collection from your hardware module itself.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Verify the entropy source. A 12-word phrase offers 128 bits of security; 24 words provides 256 bits. The random number generator must be cryptographically secure (CSPRNG). If your tool allows manual dice rolls (e.g., using BIP39 with a 256-sided table), perform at least 99 rolls with a physically unbiased die to seed the generator. Trust nothing that claims &amp;quot;true randomness&amp;quot; without verifiable output–insist on a checksum match (the last word is a partial checksum).&amp;lt;br&amp;gt;Write on high-durability material, not paper. Standard print paper degrades in heat, moisture, or UV light within 1–3 years. Use stainless steel (e.g., 24 words stamped on steel washers with a letter punch kit) or titanium plates. Fire-resistant enclosures (rated for 1100°C/2000°F for 30 minutes) cost less than $30 and protect against house fires. Do not store in a bank safe deposit box–you lose immediate access and banks may inspect contents.&amp;lt;br&amp;gt;Split your seed into 2 or 3 physical parts using Shamir&amp;#039;s Secret Sharing (SLIP-39). A 2-of-3 scheme lets you hide one part in a trusted friend&amp;#039;s possession, one in a home safe, and one in a vehicle. Each individual part reveals nothing about the final seed. Generating standard share groups with 5 words per share is simpler than managing raw BIP39 fragments. Verify each share&amp;#039;s validity by recombining them once, then destroy the original combined copy.&amp;lt;br&amp;gt;Encrypt a digital backup as a last resort, but with strict rules. Use VeraCrypt or LUKS full-disk encryption for a container file stored on two USB drives in separate locations. The container password must be a separate, 16-character-plus passphrase (not derived from the seed). Never email, cloud-sync, or photograph the seed–even encrypted–because metadata leaks (file size, modification time) can compromise location secrecy. Perform a restoration test yearly by inputting the encrypted file into a fresh device using a different OS environment.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Salt the encryption with a passphrase that you memorize separately; write this passphrase on a separate steel plate.&amp;lt;br&amp;gt;Never type the seed into any application that has network access during input.&amp;lt;br&amp;gt;Destroy all transient copies (RAM overlaps, swap files) by rebooting after generation.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Test your backup immediately without exposing the live seed. Create a separate, tiny test vault on a mobile app (using the same BIP39 standard) with a fresh 12-word phrase. Simulate a restoration: reset the test vault to factory state, then input the phrase. Verify balances and transaction history appear correctly. If you cannot complete this test within 10 minutes, your backup method is too fragile. Redesign it until the test passes.&amp;lt;br&amp;gt;Secure your generated seed against social engineering. Never share any part of the phrase, even with a spouse, unless they are a co-signer on a multisignature scheme. Use a passphrase (BIP39&amp;#039;s 13th or 25th word) as a decoy: write a plausible 24-word seed on a steel plate, but actually create a derived seed by appending a secret 5-word passphrase. If coercive actors find the physical plate, they get access to a limited account while your real funds remain protected behind the extra words.&amp;lt;br&amp;gt;Rotate your entire storage methodology if you ever type the seed into a non-hardware device. Even a single exposure to a keyboard or a screen capture invalidates the security model. Generate a completely new seed, move all assets to the new identity (sending a single zero-value transaction from the old address triggers privacy leakage–perform a coinjoin first), and destroy the compromised backup. Every direct interaction with the seed phrase increases the statistical probability of a permanent loss event; aim for zero interaction after the initial backup.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Q&amp;amp;A:  &amp;lt;br&amp;gt;I installed the Haha Wallet extension on Chrome, but it keeps asking me to create a password. I already have a wallet from another app. Can I import my existing seed phrase instead of making a new wallet?&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Yes, you can import an existing wallet. After clicking the Haha Wallet icon in your extensions bar, you will see two main options: &amp;quot;New Wallet&amp;quot; and &amp;quot;Import Wallet.&amp;quot; Choose &amp;quot;Import Wallet.&amp;quot; You will then be prompted to enter the secret recovery phrase (usually 12 or 24 words) from your other wallet. Make sure you type the words in the correct order and use lowercase letters. After that, you set a password for this extension specifically. This password is for local access on your browser, not for the blockchain. Your original wallet address and balance will then appear in [https://extension-wallet.org/wallet-haha-edge.php haha extension recovery phrase] Wallet.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;I see tokens in my Haha Wallet that I didn&amp;#039;t buy. One is called &amp;quot;TEST COIN&amp;quot; and has a huge number. Is this real money? How do I get rid of it?&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Those are almost certainly &amp;quot;dust&amp;quot; tokens or scam tokens. Someone sent them to your address in an attempt to track your wallet activity or trick you into visiting a malicious website. They are not real and have zero value. Do not interact with them. Do not click on them. Do not try to approve a transaction to swap or send them, because that can give the scammer permission to drain your real tokens. Haha Wallet does not have a built-in &amp;quot;hide dust&amp;quot; button for the default interface. Your safest option is to ignore them. If the list bothers you, you can use a block explorer like Etherscan, connect your wallet, and manually &amp;quot;hide&amp;quot; the token from the interface there, but simply ignoring is safer for new users.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;I just installed Haha Wallet. I wrote down my seed phrase on a piece of paper. Now what? Is my wallet active? Do I need to do something to &amp;quot;activate&amp;quot; it on the network?&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Your wallet is active immediately. You do not need to &amp;quot;activate&amp;quot; it on any network. The blockchain records your address as soon as the first transaction involving it is created. Your wallet address exists on the ledger the moment it is generated by the seed phrase. However, to see a balance or send tokens, you need to fund the wallet. If your address has no transactions history (like a new wallet funded by you), block explorers will show it as an empty address. To use it, you would buy cryptocurrency (for example, ETH or MATIC) on an exchange and withdraw it directly to your Haha Wallet address. After that, the balance will appear. So, write down your seed phrase, store it safely, and then deposit funds to use the wallet.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;When I try to connect Haha Wallet to a website, it shows a long string of numbers and letters. The website asks me to sign a message. Is signing a message safe? Does it cost gas fees?&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Signing a plain text message is generally safe and does not cost gas fees. This is just a way for the website to confirm you own that wallet address. There is no on-chain transaction occurring. The signature proves you control the private keys. However, you must pay attention to what you are signing. If the website asks you to sign a transaction (which looks like a block of unreadable data or a smart contract interaction) instead of a simple message, or if the message is &amp;quot;approve&amp;quot; a token for spending, then you should not sign it unless you trust the site. Haha Wallet will clearly label the difference. A safe sign request usually says something like &amp;quot;Sign in with Ethereum&amp;quot; or &amp;quot;Verify address.&amp;quot; A dangerous one will often list an &amp;quot;amount&amp;quot; or &amp;quot;spending cap.&amp;quot; Always read the warning pop-up in the extension.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;I am using Haha Wallet on my laptop. I want to switch between the Ethereum network and the Polygon network. The dropdown menu only shows &amp;quot;Mainnet&amp;quot; and &amp;quot;Testnet.&amp;quot; Where is the list of L2 networks like Arbitrum or Optimism?&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;By default, Haha Wallet may only show Ethereum Mainnet and a few test networks. To add networks like Polygon, Arbitrum, or Binance Smart Chain, you must add them manually. Click the network dropdown at the top of the extension window. At the bottom of that list, you will see a button labeled &amp;quot;Add Network.&amp;quot; You need to input the network details which you can find on the official site of that chain (Chain ID, RPC URL, Token Symbol, and Block Explorer URL). For example, for Polygon Mainnet, the Chain ID is 137 and the RPC URL is typically `https://polygon-rpc.com`. Once you fill those in and save, that network will appear in your dropdown. You can then switch between them freely.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;</summary>
		<author><name>MammieColechin</name></author>
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