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Remove App Discovery Tools (Removal Guide) - Chrome, Firefox, IE, Edge

removal by Linas Kiguolis - - | Type: Browser Hijackers

App Discovery Tools is a browser hijacker that might lead to to sites you wouldn't initially visit

App Discovery ToolsApp Discovery Tools is a browser hijacker that is usually installed via software bundle packages

App Discovery Tools is a browser extension compatible with Google Chrome, Mozilla Firefox, Opera, and MS Edge web browsers. While the application can be downloaded and installed from various official sources, it is also often bundled with third-party applications, also known as freeware. Software bundles often operate deceptively, as they do not adequately disclose all the apps that will be installed, making users miss the point of entry of browser hijackers, adware, and other potentially unwanted programs[1] – including App Discovery Tools.

As soon as the browser hijacker is installed, the web browsers will warn about the changes it is trying to make to the homepage, new tab URL, and the search engine. If approved, App Discovery Tools hijack will be successful, and users will notice changes performed to browser components instantly. The browser hijacker will redirect their searches to Yahoo (although they will be populated with sponsored links coming from the App Discovery Tools), track users' web browsing information, record browsing history, share personal data with third-parties and lead to potentially unsafe sites.

Name App Discovery Tools
Type Browser hijacker, potentially unwanted program
Associated website
Distribution Official web stores (Google, Mozilla, Opera, Edge), software bundle packages downloaded from third-party sites
Bundled with  users might be deceptively offered to install Encrypted Search along the application
  • The new tab address, homepage, and a new search engine assigned to the web browser;
  • All searches lead users to
  • Search results are filled with sponsored links
  • The homepage is filled with links leading to suspicious websites
  • Search terms are pre-determined based on popular keywords
Removal  Follow our manual guide provided at the bottom of the article; some anti-virus programs might detect the extension and get rid of it for you 
Optimization For best results, we recommend scanning the machine with repair software Reimage Reimage Cleaner Intego and resetting all browsers the extension was installed on

Browser hijackers like App Discovery Tools are deceptively dangerous. While they are allowed into the system by users themselves, there are many aspects to these PUPs that make them potentially unsafe, although most don't bother reading lengthy policies, so, essentially, they don't know what they sign up for. 

Nevertheless, there are many useful browser extensions that do provide useful functionality, such as anonymous browsing, ad-blocking feature, etc. Unfortunately, App Discovery Tools is not one such app, and you should not use it. In general, there are very few browser hijackers that will not track your online activities, so their usage is highly discouraged by security advocates. Thus, if you found the app on your system unexpectedly, remove App Discovery Tools as soon as possible.

When it comes to App Discovery Tools, it states in the privacy policy that, if you install the app, you agree that your personal (if provided) and anonymous information will be collected:[2]

We may collect information from you based on information collected resulting from your use of our Services and information that you provide to us. The information collected may include both Non-Personal Information and Personal Information.

App Discovery Tools collects and shares the following information with third-parties:

  • IP address;
  • Geo-location;
  • Browser type and browser's user agent;
  • Various technical data: hardware settings, browser language, system activity, crashes, timestamp of request and referral URL;
  • Diagnostic information about installed extensions;
  • Internet Service provide information, including its domain name;
  • Time and date of certain browser events.

Exerts highly discourage personal information (email, name, home address, etc.) sharing with third-parties, as these details can be sold for marketing purposes. As a result, you might be targeted by ad campaigns that promote various services, products, and other goods to you.

App Discovery Tools hijackApp Discovery Tools is a potentially unwanted program that tracks and shares your information with third parties

Because App Discovery Tools PUP will change your homepage, it is highly likely that you will remain on it when looking for the information on the internet. However, the search results that will be returned to you will not be organic, which means that they have been paid to stay at the top.

As a result, you might start visiting sites that you never intended to in the first place, changing the way you browse the internet altogether. Note that even though App Discovery Tools redirects to Yahoo (legitimate search tool), the sponsored links do not come from it, but rather profit the browser hijacker authors for each click made.

To sum up, you should proceed with App Discovery Tools removal and rather pick well-established companies to guide you through the web, such as Google, Yahoo, Bing, etc. If you want more privacy, there are plenty of alternatives that can be trusted – for example, DuckDuckGo.

Note that you might want to reset the web browser that the App Discovery Tools plugin was installed on – it is not necessary but highly recommended. Finally, if you think that your system might be infected with other PUPs or malware,[3] we recommend scanning the system with anti-malware software and Reimage Reimage Cleaner Intego repair tool.

Choose extensions that don't share your information with third parties

With the rise of the internet, users' privacy has been put at risk, as people do many things online: purchase products online, share their daily stories on social networks, enter their very sensitive data online to be able to use various services. Data is extremely valuable, as it can be used for various purposes that can earn third parties money.

Unfortunately, we have seen more and more data breaches that access this information, and many outrages were also caused by inadequate information-sharing practices.[4] Thus, keeping in mind that your browsing history an tell a lot about you, you should think twice before tantalizing extensions that actively track you and read the information you type on particular websites.

To avoid being deceived by companies who seek to your data for profit, you should always take a peek at the Privacy Policy before you agree to install browser extensions, media players, PDF converters, download managers, and other useless applications.

You should also be aware of unfair software distribution practices that PUP developers like so much – software bundle packages. These are typically acquired from third-party and torrent sites; the installers are often deceptive, as they incorporate such tricks as fine print text, pre-ticked boxes, misleading offers, etc. Also, make sure you always opt for Advanced/Custom settings when prompted, as it could be the only chance of stopping unwanted apps from being installed with software you initially wanted.

App Discovery Tools bundleApp Discovery Tools displays sponsored links at the top of search results in order to make users visit sponsored sites

Get rid of App Discovery Tools hijack

It is important to note that the App Discovery Tools browser extension might not be the only culprit related to the hijacking of your browser. Quite often, users have multiple PUPs installed on their system, and they are usually clueless to knowing where they came from. Thus, if you are a less proficient computer user, we highly recommend scanning the machine with reputable anti-malware software for automatic App Discovery Tools removal, as well as the termination of other apps that are considered to be PUPs.

If you do not have any other unwanted programs or malware installed on your system, you should be able to remove App Discovery Tools easily via the web browser. If you are not successful for some reason, you might want to reset the installed browser – it will get rid of all the extensions installed. If you are not sure how to do that, please follow the instructions provided below.

You may remove virus damage with a help of Reimage Reimage Cleaner Intego. SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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Reimage Intego has a free limited scanner. Reimage Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
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Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

To remove App Discovery Tools, follow these steps:

Eliminate App Discovery Tools from Windows systems

Get rid of App Discovery Tools app from Windows via the Control Panel:

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall App Discovery Tools and related programs
    Here, look for App Discovery Tools or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'
  5. Remove App Discovery Tools from Windows shortcuts
    Right click on the shortcut of Mozilla Firefox and select Properties. Right click on browsers' icon and select 'Properties'
  6. Go to Shortcut tab and look at the Target field. Delete malicious URL that is related to your virus. Select 'Shortcut' tab and delete '' or other suspicious URL

Repeat steps that are given above with all browsers' shortcuts, including Internet Explorer and Google Chrome. Make sure you check all locations of these shortcuts, including Desktop, Start Menu and taskbar.

Uninstall App Discovery Tools from Mac OS X system

macOS users should follow these steps:

If your macOS is displaying some infection symptoms, proceed with the following guide:

Remove App Discovery Tools from Applications folder:

  1. From the menu bar, select Go > Applications.
  2. In the Applications folder, look for App Discovery Tools-related entries.
  3. Click on the app and drag it to Trash (or right-click and pick Move to Trash)Uninstall from Mac 1

To fully remove App Discovery Tools, you need to access Application Support, LaunchAgents, and LaunchDaemons folders and delete relevant files:

  1. Select Go > Go to Folder.
  2. Enter /Library/Application Support and click Go or press Enter.
  3. In the Application Support folder, look for any dubious entries related to App Discovery Tools and then delete them.
  4. Now enter /Library/LaunchAgents and /Library/LaunchDaemons folders the same way and terminate all the App Discovery Tools-related entries.Uninstall from Mac 2

Remove App Discovery Tools from Internet Explorer (IE)

Remove dangerous add-ons:

  1. Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
  2. Pick Manage Add-ons.
  3. You will see a Manage Add-ons window. Here, look for App Discovery Tools and other suspicious plugins. Click on these entries and select Disable.Remove add-ons from Internet Explorer

Change your homepage if it was altered:

  1. Open IE and click on the Gear icon.
  2. Select Internet Options.
  3. In the General tab, delete the Home page address and replace it by your preferred one (for example,
  4. Click Apply and then select OK.Reset IE homepage

Delete temporary files:

  1. Press on the Gear icon and select Internet Options.
  2. Under Browsing history, click Delete…
  3. Select relevant fields and press Delete.Clear temporary files from Internet Explorer

Reset Internet Explorer:

  1. Click on Gear icon > Internet options and select Advanced tab.
  2. Select Reset.
  3. In the new window, check Delete personal settings and select Reset again to complete App Discovery Tools removal.Reset Internet Explorer

Erase App Discovery Tools from Microsoft Edge

Delete unwanted extensions from MS Edge:

  1. Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
  2. From the list, pick the App Discovery Tools-related extension and click on the Gear icon.
  3. Click on Uninstall at the bottom.Remove extensions from Edge

Clear cookies and other browser data:

  1. Click on the Menu (three horizontal dots at the top-right of the browser window) and select Privacy & security.
  2. Under Clear browsing data, pick Choose what to clear.
  3. Select everything (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.Clear Edge browsing data

Reset MS Edge if that above steps did not work:

  1. Press on Ctrl + Shift + Esc to open Task Manager.
  2. Click on More details arrow at the bottom of the window.
  3. Select Details tab.
  4. Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.Reset MS Edge

If this solution failed to help you, you need to use an advanced Edge reset method. Note that you need to backup your data before proceeding.

  1. Find the following folder on your computer: C:\\Users\\%username%\\AppData\\Local\\Packages\\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  2. Press Ctrl + A on your keyboard to select all folders.
  3. Right-click on them and pick DeleteAdvanced MS Edge reset 1
  4. Now right-click on the Start button and pick Windows PowerShell (Admin).
  5. When the new window opens, copy and paste the following command, and then press Enter:

    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\\AppXManifest.xml” -VerboseAdvanced MS Edge reset 2

Instructions for Chromium-based Edge

Delete extensions from MS Edge (Chromium):

  1. Open Edge and click select Settings > Extensions.
  2. Delete unwanted extensions by clicking Remove.Remove extensions from Chromium Edge

Clear cache and site data:

  1. Click on Menu and go to Settings.
  2. Select Privacy and services.
  3. Under Clear browsing data, pick Choose what to clear.
  4. Under Time range, pick All time.
  5. Select Clear now.Clear browser data from Chroum Edge

Reset Chromium-based MS Edge:

  1. Click on Menu and select Settings.
  2. On the left side, pick Reset settings.
  3. Select Restore settings to their default values.
  4. Confirm with Reset.Reset Chromium Edge

Delete App Discovery Tools from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select App Discovery Tools and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Change your homepage if it was altered by virus:
    Click on the menu (top right corner), choose Options General.
  4. Here, delete malicious URL and enter preferable website or click Restore to default.
  5. Click OK to save these changes. When in 'General' tab, delete malicious URL from 'Home Page' section or click on 'Restore to Default' button. Click 'OK' to save changes
  6. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  7. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete App Discovery Tools removal. Click on 'Reset Firefox' button for a couple of times

Get rid of App Discovery Tools from Google Chrome

Reset Google Chrome if you are having troubles with termination of unwanted extensions:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select App Discovery Tools and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Change your homepage and default search engine if it was altered by your virus
    Click on menu icon and choose Settings.
  4. Here, look for the Open a specific page or set of pages under On startup option and click on Set pages. After clicking on menu and 'Settings', select 'Set pages'
  5. Now you should see another window. Here, delete malicious search sites and enter the one that you want to use as your homepage. Click 'X' to remove malicious URLs
  6. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  7. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  8. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  9. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  10. Click Reset to confirm this action and complete App Discovery Tools removal. Click on 'Reset' button to complete your removal

Eliminate App Discovery Tools from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for App Discovery Tools or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Change your homepage if it was altered by virus:
    Open your Safari web browser and click on Safari in menu section. Here, select Preferences as it was displayed previously and select General.
  4. Here, look at the Homepage field. If it was altered by App Discovery Tools, remove unwanted link and enter the one that you want to use for your searches. Remember to include the "http://" before typing in the address of the page. When in 'General', delete malicious URL and enter your desired domain name
  5. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  6. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete App Discovery Tools removal process. Select all options and click on 'Reset' button

Do not let government spy on you

The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices. Avoid any unwanted government tracking or spying by going totally anonymous on the internet. 

You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using Private Internet Access VPN.

Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.

Backup files for the later use, in case of the malware attack

Computer users can suffer from data losses due to cyber infections or their own faulty doings. Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact – you can set this process to be performed automatically.

When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use Data Recovery Pro for the data restoration process.

About the author
Linas Kiguolis
Linas Kiguolis - Expert in social media

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