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Coin98 wallet extension setup troubleshooting guide



Coin98 Wallet Extension Installation Issues and Connection Problems Fix Guide

If the add-on fails to appear in your browser's toolbar after installation, first check your extensions management page. Navigate to chrome://extensions/ for Chromium-based browsers or about:addons for Firefox. Ensure the toggle is enabled and, if listed as "off," activate it. For persistent invisibility, verify your browser version is updated to at least the last two major releases; legacy software often blocks modern module functionality.


A common obstacle is the failure to establish a network link during initial configuration. This frequently stems from conflicting scripts. Disable all other cryptocurrency management utilities and ad-blockers, then reload the application's interface. Manually switching between mainnet and testnet options within the interface's settings panel can forcibly renew the remote procedure call (RPC) endpoint connection, clearing stale data caches.


Transaction signing errors or incorrect balance displays typically point to an incorrectly configured node. Access the network configuration menu and input a custom RPC URL from a trusted provider like Infura or Ankr, specifying the correct chain ID (e.g., 1 for Ethereum Mainnet, 56 for BNB Smart Chain). Confirm the block explorer URL is also set for that specific chain to enable proper transaction tracking.


Seed phrase import failures demand strict formatting adherence. Enter the 12 or 24-word mnemonic exactly, with single spaces between each word, no trailing spaces, and all lowercase letters. If the problem persists, the phrase may be from an incompatible derivation path; advanced settings allow you to modify this path to match the source application's standard.


For complete unresponsiveness, a clean reinstallation is often the most direct solution. Remove the component from your browser, clear your browser's cached data and cookies from the last 24 hours, restart the application, and install the module again from the official store. Never use installation files from unofficial channels, as they pose a significant security risk to your private keys and digital assets.

Browser Compatibility and Extension Installation Issues

Confirm your browser version is current. Outdated software is a primary cause of installation failure and erratic behavior.


For Chromium-based applications like Chrome, Brave, and Edge, navigate to chrome://extensions/, activate 'Developer mode' in the top-right corner, and select 'Load unpacked'. You must point this function to the specific folder containing the plugin's source files, which is only viable if you have manually downloaded the distribution package.


Firefox maintains a stricter add-on policy. If the tool is not found on the official Mozilla Add-ons site, you must temporarily adjust installation permissions. Visit about:config, confirm the warning, and search for 'xpinstall.signatures.required'. Double-click this preference to set its value to 'false' before attempting to add the component again.


Common installation blockers include:


Corporate or administrative group policies that disable third-party add-ons.
Overly aggressive security suites or antivirus software intercepting the file.
Corrupted browser profiles, resolvable by creating a new user profile.



If the add-on icon vanishes after installation, check your browser's puzzle-piece menu; it may be hidden there and needs pinning to the toolbar.


Safari presents unique challenges on macOS, often requiring explicit approval in System Preferences > Security & Privacy before the software can run. The standalone App Store version sometimes offers greater stability than the browser plugin.


Persistent crashes or freezes upon launch frequently stem from conflicts with existing add-ons. Disable all other plugins, then reintroduce them one by one to identify the incompatible party.


When a browser update breaks functionality, the only immediate recourse is to await a patch from the developer. Reporting the specific error through official channels accelerates fixes.

Connecting the Extension to a DApp is Unsuccessful

First, verify the DApp supports the Solana or EVM network your add-on is currently configured for; a mismatch is the most frequent cause. Check the network indicator in the interface and switch it directly within the add-on's menu if needed. Ensure the application you're trying to connect to is not blocked by your browser's privacy or security settings–review site permissions and disable any conflicting ad-blockers for that specific domain. Clear the site's cached data from your browser's settings and attempt the connection process again on a refreshed page.


If the problem persists, a conflict with other cryptographic tools might be the issue. Use your browser's extension management page to temporarily disable other finance-related plugins, then reload the DApp. For persistent connection handshake failures, reset the linked site permissions inside the add-on's own settings menu. This action revokes all prior connection approvals, forcing a fresh authorization request. Consider this diagnostic table for specific error messages:Error SymptomImmediate Action"Provider not found"Re-install the add-on and restart the browser."Transaction declined" automaticallyCheck transaction priority fees and gas limits in the add-on's settings.Blank pop-up windowAllow pop-ups and redirects for the DApp's URL in browser settings.

Transaction Stuck or Not Confirmed in the Wallet

First, check the blockchain explorer for your transaction ID to see its current status and network congestion.


If the network is busy, you might need to wait; some chains process transactions slower during peak times.


For a truly stalled transfer, use the "Speed Up" or "Cancel" function directly within your interface, which will re-broadcast the transaction with a higher gas fee.


Manually increasing the gas price (Gwei) in the transaction details before signing can prevent future delays, especially on Ethereum or EVM-compatible networks.


Always ensure the nonce for a replacement transaction matches the original stuck one.


A transaction with zero confirmations for over 24 hours on a normally functioning network often indicates it was dropped from the mempool and funds are not deducted; you can safely attempt the transfer again.


Persistent issues may stem from an RPC node problem; switching to a custom, reliable endpoint in your application's network settings can resolve broadcast failures.

Recovering Wallet with Seed Phrase or Private Key Fails

First, verify you are entering the exact 12 or 24-word mnemonic phrase generated during the initial creation of your vault.


Check every single character. A single typo, an extra space at the end, or an incorrect word order will always result in a different, empty address. The software's derivation path must also match the original; selecting the wrong blockchain network (like BIP44 for Ethereum vs. BIP84 for Bitcoin SegWit) during recovery generates different receiving addresses.


For private key imports, ensure you are pasting the full, uncompressed 64-character hexadecimal string, without any '0x' prefix if the field doesn't require it. Some interfaces accept the raw key, others need the encrypted Keystore/JSON file paired with its specific password.


Phrases are case-sensitive. "Wallet" is not the same as "wallet".


If the interface shows a successfully derived address but it holds zero assets, you likely recovered a different account within the same hierarchical deterministic tree. Use the advanced settings to manually increment the 'Account Index' from 0 to 1, 2, or higher to scan for your funds.


Clear the application's cache and browser data, as corrupted local storage can interfere with cryptographic functions. Attempt the process in a private/incognito window to eliminate extension conflicts.


Hardware issues matter: a faulty or laggy keyboard can double-press keys or miss characters. Manually type a few words, then use careful copy-paste for the rest to minimize error.


If all steps confirm accuracy and the assets remain inaccessible, the provided credentials are incorrect. There is no backdoor; the security model guarantees only the precise original key material can restore access.

Extension Not Displaying Accurate Token Balances

Force a manual refresh of your portfolio's data directly within the interface. This action bypasses cached information and prompts a fresh query to the blockchain's RPC node, which is often the source of stale balance data.


Verify that the active network in your interface matches the chain on which your assets are held. A common mismatch is viewing the Ethereum network while your tokens exist on a layer-2 like Arbitrum or a separate chain like BNB Smart Chain; each requires its specific network selection to query balances correctly. Additionally, check if the token contract address in your asset list is correct and officially verified, as custom additions with erroneous addresses will not display a balance.


If discrepancies persist, the issue may lie with the RPC endpoint configuration. Public RPC nodes can become overloaded or desynchronized. Access your settings to switch to a more reliable, private RPC URL for the affected network to ensure stable and precise data retrieval from the chain itself.

Resolving Network and RPC Configuration Errors

Verify the RPC endpoint URL for your chosen blockchain; a single incorrect character will halt all operations. For Ethereum, a reliable public endpoint is https://eth.llamarpc.com, while Polygon often works with https://polygon-rpc.com. Never assume a generic URL is correct–always consult the official documentation for the specific network you are adding.


Manually inputting all parameters guarantees accuracy. The required fields typically include:


Network Name (e.g., Arbitrum One)
New RPC URL (from a trusted provider)
Chain ID (e.g., 42161 for Arbitrum)
Currency Symbol (e.g., ETH)
Block Explorer URL (e.g., https://arbiscan.io)


Omitting the explorer URL is a common mistake that causes transaction verification failures.


Chain ID mismatches are a primary source of failed transactions. Confirm this numeric identifier matches the network's current standard, as they can be updated. For BNB Smart Chain, the Chain ID must be 56, not the legacy value 97 used by the testnet.


If a custom network appears added but fails to fetch balances, the RPC node might be overloaded or offline. Switch to an alternative public RPC provider or a dedicated service like Infura or Alchemy, which offer more consistent uptime and rate limits. Public endpoints can become congested, especially during periods of high network activity.


Persistent "Invalid RPC" errors may stem from your browser or system blocking the connection. Temporarily disable any aggressive ad-blockers, VPNs, or firewall rules that could interfere with the data request to the node. Whitelisting the domain of your RPC provider can resolve this silent failure.


Clear the application's cached network data. This forces a fresh pull of the latest chain information, removing corrupted or stale configurations that cause persistent validation errors even after the correct details are re-entered.

Fixing Blank Screen or Extension Failure to Load

Immediately check your browser's extension management page (chrome://extensions or edge://extensions) and ensure the add-on is enabled and not showing an error icon.


A corrupted local cache is a frequent culprit. Navigate to your browser's settings, find the clear browsing data option, and select 'Cached images and files' for the last hour. Reload the add-on interface afterward.


Conflicts with other add-ons can cause silent failures. Disable all other installed add-ons temporarily via the extensions page, then restart your browser. If the interface loads, reactivate others one by one to identify the incompatible software.


Outdated browser versions often lack the necessary APIs. Verify you are running the latest stable build of Chrome, Brave, Firefox, or Edge. Automatic updates can sometimes be stalled, so a manual check is necessary.


Reinstalling the software completely refreshes its components. Remove it from your browser, then obtain a fresh copy directly from the official store–never from third-party sources. A new installation often resolves corrupted file issues undetected by simpler refreshes.


If the problem persists across browser restarts and a reinstall, the specific build may have a critical bug. Monitor the developer's official communication channels for announcements regarding known issues and pending patches for your browser version. System-level security software can also interfere; creating an exception for the browser in your firewall or antivirus settings is a final diagnostic step.

Q&A:
My Coin98 extension icon is missing from the browser toolbar. How do I get it back?

This is a common issue. First, click the puzzle piece icon in your browser (usually top-right) to see your extensions list. Find Coin98 Wallet and ensure it's pinned. If it's not in the list at all, the extension may have been removed. You'll need to reinstall it from the official Chrome Web Store or Firefox Add-ons site. After reinstalling, use your secret recovery phrase to restore your existing wallet. Never enter your phrase on any site other than the official extension.

After installing the extension, I see a blank white or black screen. What can I do?

A blank screen often points to a conflict or corrupted installation. Try these steps in order: 1) Hard refresh the extension page by opening it and pressing Ctrl+Shift+R (or Cmd+Shift+R on Mac). 2) Disable other wallet extensions temporarily to check for conflicts. 3) Clear your browser's cached data and cookies for the extension's site. If these fail, uninstall Coin98 completely, restart your browser, and install a fresh copy from the official store. Ensure your browser is updated to its latest version.

I'm getting a "Connection Error" or "Network Error" within the Coin98 wallet. How do I fix this?

This error typically relates to your internet connection or the wallet's RPC settings. First, check your general internet connectivity. If other sites work, the issue may be with the specific blockchain network's RPC node. Inside the Coin98 wallet, go to the settings for the affected network (like Ethereum or BSC). Try switching to a different public RPC endpoint. You can find reliable, free RPC URLs from the blockchain's official documentation. Restarting the extension after changing the RPC often resolves the problem.

Can I use the same wallet on the Coin98 mobile app and the browser extension?

Yes, you can access the same wallet on both platforms. The method is to use your secret recovery phrase. Set up your wallet on one device first (e.g., the browser extension). During setup, you will receive a 12 or 24-word recovery phrase. Write it down and store it securely. Then, on your other device (e.g., the mobile app), choose the "Import Wallet" option instead of "Create New Wallet." Enter the exact same recovery phrase. This will give you access to the same accounts and funds across both devices. Your transaction history and custom tokens may need to be reconfigured on the new device.

The extension isn't popping up when I click "Connect Wallet" on a website. What's wrong?

Several factors can cause this. First, ensure the Coin98 extension is active and unlocked. Check if the website supports the Coin98 wallet specifically; some older sites may only list MetaMask. If it does support Coin98 Wallet Chrome extension, try these steps: 1) Refresh the website page. 2) Click the extension icon in your toolbar first to unlock it, then try the website button again. 3) Check your browser's site permissions (the lock icon in the address bar) to ensure the site isn't blocked. 4) As a last resort, reinstall the extension. Also, confirm you are not using a browser with built-in privacy features that block extension scripts on certain sites.