Browser Redirect

How to Remove Fidonav from Chrome/FF/IE (Feb. 2019 Update)

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

Download SpyHunter Anti-Malware

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

This page aims to help you remove Fidonav. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

Technically, Fidonav is a browser hijacker that spreads on the web as a useful search engine and tends to integrate with Chrome, Firefox, Internet Explorer and other popular browsers. This program claims to be ready to show people the most appropriate search results and to help them improve their browsing experience by changing their homepage, redirecting their searches and showing them targeted ads, pop-ups, banners and web pages. However, have you ever considered why there are so many users who are looking to remove Fidonav? In the next lines, we will give you a thorough look at this browser hijacker and its abilities and will tell you exactly how to remove its nagging ads by fully uninstalling it from your system. If you want to get rid of this program, you should know that the uninstallation process is much more complicated than it looks. The browser hijacker may attempt to hide from you or use browser objects and components to prevent it from being deleted. For this reason, we have prepared a detailed removal guide which will show you the necessary steps to eliminate all the browser hijacking components once and for all.



How Fidonav spreads and why it is not a good idea to keep it on your PC

Programs like this can usually be found on many web locations and may be freely downloaded directly from some file sharing sites, torrent platforms, freeware sites and ads. However, most of the times the browser hijacker is part of the installers of other programs (usually free applications) and is installed without the user’s knowledge thanks to a software bundle technique. The key to a safe installation process of free software without additional bundles is to be careful and to review each step of the installation without any hurry. You should avoid installing programs with “Default” or “Standard Installation” settings. Instead, select the detailed settings. You should then uncheck suspicious bids for free bonus software, recommended software or additional components. Make sure you have unmarked fields saying: “I agree to make Fidonav my default search engine” or “make my homepage “. No matter how harmless it looks, this hijacker can only mess up your computer.

How to Remove Fidonav

If you are a Windows user, continue with the guide below.

If you are a Mac user, please use our How to remove Ads on Mac guide.

If you are an Android user, please use our Android Malware Removal guide.


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 


Hold together the Start Key and R. Type appwiz.cpl –> OK.


You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:


Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.


Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove Fidonav from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove Fidonav from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Fidonav from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

Another thing to warn you about is that leaving Fidonav on your computer may be dangerous. This is because of its ability to monitor the users’ browsing activity. In addition, you should be careful because it can show you changed search results or redirect you to sponsored sites, which may hide potentially malicious components such as viruses, Trojans and Ransomware. In return for this activity, the developers of this program receive revenue through Pay-Per-Click or other sponsored ads positioning. However, you should also be cautious about the problem of redirecting, initiated by this and other hijackers. Don’t rush into clicking on a suspicious ad generated by this program, because some nasty virus may be cleverly hidden in the search results. Although this may not always be the case, it is true that you cannot be sure which of your redirected searches may lead to illegal sites, so it’s highly recommended to avoid them or even better, remove the browser hijacker from your system.

Moreover, if you were misled into downloading this program while installing another program, you should uninstall it from your machine instead of being forced to tolerate its activities. We recommend that you use the professional Fidonav removal tool to quickly detect and delete all the related components without much effort, or use the manual instructions in the removal guide below. 

How do you remove this browser hijacker?

Fidonav is an unpleasant application that has already hit thousands of computers. Unfortunately, some users do not even know that they are dealing with a browser hijacker. It is a shame because such users may easily be redirected to malicious sites and catch a Trojan or Ransomware infection by chance. In addition, they may reveal their personal information to strangers because browsers and similar components often tend to collect some browsing related information and transmit it to third parties. With this in mind, we can say that you should not keep such software on your computer because it’s obvious that it does not bring anything positive for the users. Fortunately, we can show you how to uninstall Fidonav from your system. For this, we have decided to prepare very informative removal instructions, including illustrations and pictures related to the removal process. Check them below and find out how to safely get rid of the unwanted program.


Name Fidonav
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Sudden page redirects, generation of intrusive ads, banners and pop-ups, homepage or search engine replacements
Distribution Method Torrents, freeware or shareware sites, software bundles, ads, free download links, automatic installers.
Detection Tool

Keep in mind, SpyHunter’s malware detection tool is free. To remove the infection, you’ll need to purchase the full version. More information about SpyHunter and steps to uninstall.

Leave a Comment