Nexus Mod Manager (NMM) is the dream tool for any gamer who craves deeper immersion and customised experiences. From breathtaking texture overhauls to innovative gameplay tweaks, NMM unlocks a treasure trove of mods that can transform your favorite games. But before you dive headfirst into this wonderland of possibilities, there’s a crucial hurdle to overcome: your firewall.

Firewalls, while essential for online security, can sometimes misinterpret NMM’s activities as suspicious, restricting its ability to function properly. This can lead to frustrating installation errors, missing content, and ultimately, a less-than-ideal modded experience. Fear not, intrepid modders! This guide will be your trusty companion, explaining the importance of granting NMM firewall access and guiding you through the process step-by-step. Get ready to unleash the full potential of NMM and embark on unforgettable modded adventures with complete confidence and security!

What is Nexud Mod Manager?

NEXUS MOD MANAGER: Beginner’s Guide, Install, Setup and Update

Nexus Mod Manager (NMM) is a free and open-source application that allows users to easily download, manage, and install mods for a variety of video games. It is one of the most popular mod managers available, and is especially popular for games like Skyrim, Fallout, and The Witcher 3.

It was developed by Nexus Mods and provided a centralized platform for users to discover, download, and install modifications (mods) for their favorite games.

Key features of Nexus Mod Manager included:

  1. Mod Repository: Nexus Mod Manager allowed users to browse and access a vast repository of mods hosted on the Nexus Mods website.
  2. One-Click Installation: Users could easily download and install mods with a single click through the NMM interface.
  3. Load Order Management: Nexus Mod Manager assisted users in managing the load order of installed mods, crucial for ensuring compatibility and preventing conflicts.
  4. Virtual folders: NMM allows you to create virtual folders, which can be used to keep your mods organized and prevent conflicts.
  5. Automatic Updates: The tool provided notifications and automatic updates for installed mods when new versions were available.
  6. Profile Management: Users could create and manage different mod profiles, allowing them to switch between different sets of mods for different playthroughs.

It’s worth noting that as of my last knowledge update in January 2022, Nexus Mod Manager is considered outdated and has been largely replaced by a more modern and versatile mod management tool called Vortex, also developed by Nexus Mods. Vortex offers additional features and improved usability for modding various PC games. Users are encouraged to check the Nexus Mods website or other reliable sources for the latest information on mod management tools and practices.

Accessing Windows Firewall Settings

Windows Firewall is your computer’s guardian against unwanted online traffic. Whether you’re allowing Nexus Mod Manager access or simply checking your security settings, knowing how to access the firewall is essential. Here are two ways to navigate to those crucial settings:

Method 1: Classic Control Panel Route (Windows 7, 8, 10, and 11)

  1. Open the Start menu: Click on the Windows icon in the bottom left corner of your screen.
  2. Find the Control Panel: Type “Control Panel” in the search bar and click on the resulting icon.
  3. Navigate to System and Security: Once the Control Panel opens, look for the category labeled “System and Security.” Click on it.
  4. Enter the Firewall Zone: Within the “System and Security” category, you’ll see an option titled “Windows Firewall.” This is your destination! Click on it.

Method 2: The Modern Settings App Route (Windows 10 and 11)

  1. Summon Settings: Click on the gear icon in the Start menu to open the Windows Settings app.
  2. Explore Update & Security: In the Settings window, locate and click on the “Update & Security” option.
  3. Navigate to Firewall & network protection: Within the “Update & Security” settings, scroll down and click on the option labeled “Windows Security” or “Firewall & network protection.”

Voila! Both methods lead you to the same destination: the Windows Firewall settings. Now you can add NMM as an exception, configure its access, or explore other security options to your heart’s content. Remember, choose the method that feels most comfortable and familiar to you.

Bonus Tip: For even faster access, right-click on your network icon in the taskbar and select “Firewall & network protection” to jump straight to the relevant settings.

Locating Nexus Mod Manager in Firewall Settings

Now that you’ve accessed your Windows Firewall settings, it’s time to find our modding ally, Nexus Mod Manager (NMM). Remember, navigating might slightly differ between Windows versions, but we’ll cover both common scenarios!

Method 1: Unveiling NMM in the Allowed Apps List (Windows 7, 8, and 10)

  1. Seek “Allowed Apps”: Within the Windows Firewall settings, look for an option titled “Allow an app or feature through Windows Firewall” (Windows 7) or “Allow apps through firewall” (Windows 8/10). Click on it.
  2. Scroll for NMM: A list of allowed apps will appear. Scroll through it alphabetically or use the search bar (if available) to see if “Nexus Mod Manager” or “NMM” is already listed.

Method 2: Unveiling NMM in the Advanced Settings (Windows 10 and 11)

  1. Dive Deeper: In the Windows Firewall settings, look for an option titled “Advanced settings” (Windows 10) or “Inbound Rules” (Windows 11). Click on it.
  2. Explore Inbound Rules: You’ll now see a list of “Inbound Rules” governing program access. Look for rules with names like “Nexus Mod Manager”, “NMM”, or similar keywords that might indicate NMM-related entries.

Identifying NMM

  • Exact Match: If you found “Nexus Mod Manager” or “NMM” directly in the list, congratulations! You’ve located it.
  • Suspicious Lookalikes: Be cautious of entries with similar names but different publishers. Only allow the genuine NMM entry.
  • Component Clues: If you couldn’t find an exact match, scan through rules mentioning “NMM Launcher”, “NMM Downloader”, or other program components.

Pro Tip: Right-click suspicious entries and choose “Properties” to verify publisher and file paths. Only allow entries with “Nexus Mods LLC” as the publisher and paths pointing to your NMM installation directory.

Remember: Don’t create new rules unless absolutely necessary and only after consulting official tutorials or contacting Nexus Mod Manager support.

Following these steps should help you locate NMM in your firewall settings, paving the way for a seamless modded gaming experience!

Allowing Nexus Mod Manager Through the Firewall

Now that you’ve successfully located Nexus Mod Manager (NMM) in your Windows Firewall settings, it’s time to grant it the access it needs to function properly. Remember, this process might differ slightly depending on your Windows version, but we’ll guide you through both common scenarios!

Method 1: Granting Access in the Allowed Apps List (Windows 7, 8, and 10)

  1. Select NMM: In the “Allow an app or feature through Windows Firewall” window (Windows 7) or “Allow apps through firewall” window (Windows 8/10), locate the entry for “Nexus Mod Manager” or “NMM”.
  2. Enable Private and Public Access: Check the boxes next to both “Private” and “Public” options to allow NMM access on all network types (home, public Wi-Fi, etc.).
  3. Confirm and Save: Click the “OK” button to save your changes. You’re done!

Method 2: Granting Access in the Advanced Settings (Windows 10 and 11)

  1. Right-click on the NMM Rule: In the “Inbound Rules” list, right-click on the rule associated with NMM (e.g., “Nexus Mod Manager”, “NMM Launcher”, etc.).
  2. Enable All Profiles: Select “Enable Rule” under “General”. This allows access on all network types.
  3. Save and Close: Click “Apply” and then “OK” to save your changes.

Additional Considerations:

  • Remember: If you find multiple rules related to NMM, apply the changes to all relevant rules.
  • Advanced Users: If you’re comfortable with advanced settings, you can further customise access by modifying specific protocols or ports used by NMM. However, it’s generally recommended to stick to the default settings unless you have a specific reason to adjust them.
  • Verification: After making changes, launch NMM and check if it functions properly. If you encounter issues, double-check your firewall settings or consult the NMM documentation for troubleshooting assistance.

Important Note

While allowing Nexus Mod Manager through your firewall can enhance your modding experience, it’s crucial to be mindful of the potential security risks involved. Always download Nexus Mod manager from the official website and only allow access to legitimate rules associated with the software. If you’re unsure about any aspect of the process, it’s best to consult the official Nexus Mod Manager documentation or seek help from a trusted tech expert.

By following these steps and exercising caution, you can safely grant NMM the access it needs to unleash your modding potential while maintaining a secure online experience. Happy modding!

Testing Nexus Mod Manager Functionality

After granting Nexus Mod Manager (NMM) access through your firewall, it’s essential to verify everything works smoothly. Here’s how to test NMM’s functionality:

Step 1: Relaunch with Confidence

  1. Close NMM completely if it’s currently running.
  2. Right-click on the NMM shortcut and select “Run as administrator” (this ensures access to any restricted resources).

Step 2: Connection Check

  1. Within NMM, navigate to the “Mods” tab.
  2. Look for any error messages about connectivity or failed downloads.
  3. Try searching for a random mod or browse popular mods. Do they load and display information correctly?

Step 3: Download Drill

  1. Select a small, reputable mod you haven’t installed before.
  2. Click “Download” and observe the progress. Does it complete without interruptions or errors?
  3. Once downloaded, initiate the installation process. Does it proceed smoothly?

Step 4: Monitor for Hiccups

  1. During the download and installation, keep an eye on any unusual behavior. Slow speeds, unexpected pauses, or error messages could indicate lingering issues.
  2. Check your internet connection stability and ensure your firewall settings haven’t accidentally blocked other necessary connections.

Bonus Tip:

  • Try downloading and installing a mod that requires downloading additional files from external sources. This tests NMM’s ability to handle more complex mod structures.

A Quick Reminder

  • If you encounter any issues, double-check your firewall settings to ensure NMM has the correct access level for both private and public networks (if applicable).
  • Consult the NMM documentation or online forums for troubleshooting guidance if needed.
  • Consider temporarily pausing your firewall while testing to isolate the issue, but remember to re-enable it afterward for security.

By following these steps and staying vigilant, you can ensure your Nexus Mod Manager is operating smoothly and your modding adventures can proceed without hitches. Enjoy the power of mods with confidence!

Troubleshooting Common Issues: When Your Mods Meet Firewall Roadblocks

Nexus Mod Manager — Not Installing Correctly [FIX]

Even after following the steps to allow Nexus Mod Manager (NMM) through your firewall, you might encounter some hiccups. Here’s how to tackle common challenges and frequently asked questions:

Challenge 1: Connection Woes

  • Error messages: If NMM displays error messages about failed connections or downloads, double-check your internet connection and ensure you’re connected to the right network (e.g., private or public). Temporarily pausing your firewall can help isolate if it’s truly the culprit.
  • Firewall settings: Verify that NMM has the correct access level granted in your firewall for both private and public networks (if applicable). Consult your firewall software’s documentation for specific instructions.
  • Antivirus interference: Some antivirus software might restrict NMM’s activity. Check your antivirus settings for exclusions or exceptions related to NMM or its specific files/folders.

Challenge 2: Installation Frustrations

  • Incomplete downloads: Try restarting NMM and the download. Ensure enough disk space is available. If the issue persists, try downloading a different mod to rule out a specific mod-related problem.
  • Installation errors: Check the error message carefully for clues. It might indicate missing files, compatibility issues, or incorrect permissions. Search online forums for solutions related to the specific error code or message.

Challenge 3: Firewall Settings Reset Unexpectedly

  • Check for conflicting software: Some security programs might automatically override firewall rules. Review your security software settings to see if it’s interfering.
  • Consider creating a custom rule: Instead of relying on NMM’s default rule, create a custom rule for NMM in your firewall settings with more specific permissions.

Frequently Asked Questions

  • Do I need to allow every NMM component separately? Usually, allowing the main “Nexus Mod Manager” entry is sufficient. Only consider individual entries if you encounter specific issues related to that component.
  • Is it safe to temporarily disable my firewall to test NMM? Do so only for testing purposes and re-enable it immediately afterward. Remember, firewalls are crucial for online security.
  • What if I’m unsure about specific firewall settings? Consult your firewall software’s documentation or seek help from IT professionals to avoid misconfiguring important security settings.

Seeking Additional Support

  • NMM Documentation: The official NMM website offers documentation and troubleshooting guides.
  • NMM Forums: The NMM community forum is a wealth of information and user experiences.
  • Contacting NMM Support: If you’ve exhausted other options, consider contacting the NMM support team directly for personalised assistance.

Security Considerations: Modding with Caution

How to Allow Nexus Mod Manager (NMM) Through Firewall: A Step-by-Step Guide Nexus Mod Manager
Allowing Nexus Mod Manager through your Firewall

While allowing Nexus Mod Manager (NMM) through your firewall unlocks a realm of exciting modding possibilities, it’s crucial to remember that security must remain a top priority. Here’s a breakdown of the key security considerations to keep in mind:

Maintaining a Secure System

  • Firewall as Gatekeeper: Remember, your firewall is your first line of defense against online threats. Allowing NMM access creates a controlled opening in that defense, so it’s essential to maintain a robust security posture overall.
  • Antivirus Protection: Ensure you have a reputable antivirus program with real-time scanning enabled. This helps detect and block potential malware even if it manages to slip through the firewall.
  • System Updates: Regularly update your operating system, antivirus software, and any other programs you use. Updates often include security patches, fixing vulnerabilities that hackers might exploit.
  • Safe Download Practices: Only download mods from trusted sources like the Nexus Mods website. Avoid downloading mods from suspicious websites or through unofficial channels, as they might contain malware.

Modding and Third-Party Risks

  • Blind Trust is Risky: Even trusted sources can have occasional security breaches. While NMM is a reputable application, always exercise caution when installing any third-party software, including mods.
  • Read Mod Descriptions: Pay attention to mod descriptions and user reviews to understand potential compatibility issues or reported security concerns. Stick to well-established mods with positive feedback.
  • Limited Access is Best: When adding NMM to your firewall, consider granting access only for the networks you typically use for modding (e.g., your home network). Avoid granting public network access if possible.
  • Sandbox Tools (Optional): For advanced users, consider using sandbox tools that create isolated environments for running third-party applications like NMM, further limiting potential risks.

Alternatives and Extra Security

  • Mod Managers Don’t Require Firewall Access (Sometimes): Certain games have built-in mod managers or online repositories with direct installation options. Explore these alternatives if security concerns outweigh the convenience of NMM.
  • Strong Passwords and Two-Factor Authentication: Secure your online accounts with strong, unique passwords and enable two-factor authentication wherever possible. These add extra layers of defense against unauthorised access.
  • Stay Informed: Keep yourself updated on known vulnerabilities and security best practices related to modding and online gaming.

Remember: The responsibility for your online security ultimately lies with you. Weigh the benefits of enhanced modding against the potential risks, and adapt your approach based on your risk tolerance and technical expertise. Don’t hesitate to seek help from experts or community forums if you’re unsure about any aspect of modding or firewall settings.

By adopting a cautious and informed approach, you can enjoy the world of modding with NMM while keeping your system and online accounts safe. Happy modding, but always mod responsibly!


The allure of enhanced gaming experiences through mods is undeniable, and Nexus Mod Manager (NMM) stands as a gateway to this exciting world. But before you embark on your modding journey, it’s crucial to navigate the sometimes-daunting world of firewalls. Rest assured, this guide will equip you with the knowledge and steps to safely grant NMM the access it needs while prioritising your system’s security.

First things first, understand the potential risks involved in allowing any program through your firewall. This digital gatekeeper exists to protect your system from unauthorised access, and opening it even slightly requires caution. To minimise risks, ensure you download NMM only from the official website and consider alternative methods like built-in mod managers or direct installation options if security is your top concern.

Now, let’s delve into the process of granting NMM access. The specific steps might differ depending on your Windows version, but the general principles remain the same. Whether you navigate through the classic Control Panel or the modern Settings app, your goal is to locate NMM within your firewall settings. Look for entries with names like “Nexus Mod Manager” or related keywords, and remember to double-check the publisher and file paths before granting access. This ensures you’re allowing the genuine NMM and not a potential imposter.

Once you’ve found NMM, it’s time to carefully grant it access. Choose the network level that aligns with your usage habits – private, public, or both. Remember, the more access you grant, the potentially wider the opening in your firewall’s defenses. After confirming your changes, don’t forget to test NMM’s functionality by relaunching it and attempting to download or install a mod. This verifies that everything works as intended.

But allowing NMM access is just one piece of the puzzle. Remember, security is an ongoing journey. Maintain a robust security posture by implementing a reputable antivirus program with real-time scanning, keeping your system updated with the latest security patches, and practicing safe download habits. When it comes to mods, stick to trusted sources, read user reviews, and consider limiting NMM’s access to specific networks if possible.

By following these steps and prioritising security, you can unlock the full potential of NMM and embark on a modding adventure filled with wonder and excitement. Remember, responsible modding and informed choices go hand-in-hand, ensuring your journey is not only thrilling but also safe. So, download, install, and experience the magic of mods with confidence!