HorizonGlorius Mac Adware Removal Guide

HorizonGlorius is an unfamiliar browser extension that affirms that it improves online browsers and the search experience of Mac users. This application appears handy and risk-free based on how it was presented. However, computer security experts marked this program as adware. It relies on an unfair online marketing campaign to generate profit for the developers. Unfortunately, ads emerging on the browser during the occurrence of HorizonGlorius may cause harm. Clicking on it may divert the browser pages to suspicious sites that host malware or viruses.

How does Horizon Glorius sneak into the computer?

HorizonGlorius may be integrated into the browser application even without the user’s request. This suspicious browser tool usually comes uninvited, as it hides along with freeware, trial software, or other dubious free installers. Some Mac users assumed that it was a kind of computer virus due to its sneaky and invasive behavior.

Applying full preventive measures when downloading and installing free programs is necessary to avoid obtaining hazardous adware like HorizonGlorius. It is vital to verify if the download site or source is credible. It is also important to pay closer attention during the setup process to ensure that there is no extra program included except for your desired application.

Screenshot of HorizonGlorius for Mac

HorizonGlorius is an adware

It appears that HorizonGlorius adware is able to perform functions that may affect your web surfing activity. The moment it is installed on the Mac computer, it will modify the default browser settings, including the homepage and search. In addition, the presence of HorizonGlorius allows pop-ups, banners, and other commercial items to be injected into the infected browser program. Keep in mind that this dubious extension is a leverage for online fraudsters to generate revenue by serving a wide range of online advertisements. Therefore, it is best to get rid of HorizonGlorius and other unwanted files associated with this adware. For removal instructions, please see the steps provided below. As recommended, thoroughly scan the computer with powerful anti-virus and anti-malware tools.

How can you avoid an adware infection?

Start by being cautious while downloading applications to avoid your Mac becoming infected with HorizonGlorius adware. Also, always refer to reliable sources alone, such as the official websites of respectable developers or the Mac App Store. To confirm an application’s validity, always read reviews and ratings before downloading any applications.

In addition, you must update your installed software and Mac operating system often to fix any vulnerabilities that adware could exploit. Make use of built-in security tools such as Gatekeeper to help stop apps from unknown developers from being installed. Finally, to add an extra layer of defense against HorizonGlorius adware and other possible risks, think about downloading reliable antivirus software made especially for Mac computers.

Procedures to Remove HorizonGlorius from Mac

This area contains comprehensive procedures to help you remove adware and potentially unwanted program from the computer. Guide on this page are written in a manner that can be easily understand and execute by Mac users.

Step 1 : - Scan the Mac Computer with Combo Cleaner

Combo Cleaner is a trusted Mac utility application with complete antivirus and optimization features. It is useful in dealing with adware, malware, and PUP's. Moreover, it can get rid of adware like HorizonGlorius.

1. Download the tool from the following page:

2. Double-click the downloaded file, combocleaner.dmg and proceed with the installation.

3. The installation window will open. Please double-click or drag the Combo Cleaner icon to the Applications folder.

Screenshot of Installer

4. Proceed with the installation. When it displays the Software License Agreement, please click Continue, and then click on Agree in the confirmation window. Continue with the default installation.

5. The program should run automatically after installation. If not, open your Launchpad and click on the Combo Cleaner icon.

6. Wait until antivirus downloads its latest virus definition updates and click on "Start Combo Scan" to start removing HorizonGlorius and other issues on the Mac computer.

Screenshot of Dashboard

7. After the virus and disk scan processes, the tool will display the results. Click on Remove Selected to start cleaning the computer.

To fully optimize the features of antivirus and privacy scanners, users may have to upgrade to the premium version.

If you are comfortable manually removing the adware and other malicious objects associated with it, please proceed with the remaining steps.

Step 2 : Delete HorizonGlorius from Mac Applications

1. Go to Finder.

2. On the menu, click Go and then, select Applications from the list to open Applications Folder.

3. Find HorizonGlorius or any unwanted program.

Screenshot of Deleting App

4. Drag HorizonGlorius to Trash Bin to delete the application from Mac.

5. Next, go to the Dock, right-click on the Trash icon, and click on Empty Trash.

Step 3 : Remove Browser Extensions that belongs to HorizonGlorius

Most adware and unwanted programs use an application called a "browser extension" to be able to take over the settings of internet applications. Therefore, we highly recommend checking and removing the extension that is closely related to HorizonGlorius. If it is not present, look for and delete any suspicious browser extension.

Google Chrome

Remove the HorizonGlorius Extension from Google Chrome

1. Open the Google Chrome browser.

2. Input the strings below in the address bar and press Enter on the keyboard:

chrome://extensions/

Screenshot of Chrome Extensions in PC

3. Find HorizonGlorius or a relevant entry and remove it from Google Chrome.

Safari

Remove Malicious Extension from Safari

1. Open the Safari browser.

2. On the top menu, click Safari > Settings or Preferences.

3. The Safari settings window will open. Please select the Extensions tab.

Screenshot of Safari Extension Removal

4. Locate the suspicious extension and click the Uninstall button to remove it from Safari.

5. You may now close the window and restart Safari.

Microsoft Edge

Remove HorizonGlorius from Microsoft Edge Browser

1. Open the Microsoft Edge program.

2. Input or copy and paste the following string in the address bar. Press press Enter on the keyboard:

edge://extensions/

Screenshot of Edge Extension on Mac

3. Look for and Remove or Disable entries for HorizonGlorius from the Installed Extensions area.

Screenshot of Edge Extension Removal - Mac

4. You may now close the window and restart the Microsoft Edge browser.

Mozilla Firefox

Uninstall the HorizonGlorius Extension from Mozilla Firefox

1. Open the Mozilla Firefox browser.

2. Type or copy and paste the strings below in the address bar and press Enter on the keyboard:

about:addons

Screenshot of Firefox Extension

3. Click on Extensions from the sidebar menu.

4. Look for an entry that pertains to HorizonGlorius and Disable or Remove it from the browser using the options button.

Step 4 : Delete Malicious Files that have installed HorizonGlorius

1. Go to your Finder. From the menu bar, please select Go > Go to Folder.

2. Input the following string and press Enter on the keyboard.

~/Library/LaunchAgents

Screenshot of Go To Folder

3. You will now see a hidden folder named LaunchAgents. Take note of the following files inside the folder:

  • com.HorizonGlorius.plist
  • unknown.service.plist
  • unknown.system.plist
  • unknown.download.plist
  • unknown.update.plist

4. The term unknown is just a representation of the actual malware name. Attackers may use the following file names:

- HorizonGlorius, (random characters).plist

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing HorizonGlorius to be present on your Mac. Arranging all items to see the latest ones may also help you identify recently installed unfamiliar files.

5. Please click on "Show items as..."

Screenshot of LaunhAgents Folder

6. To arrange the items in chronological order, click Date Modified.

7. Drag all suspicious files that you may find to Trash.

Important: Take note of all the suspicious files, as you may also delete the same item in another folder as we go on.

8. Please restart the Mac computer.

9. Open another folder using the same method as above. Copy and paste the following string to easily locate the folder:

~/Library/Application Support

Screenshot of Go to Folder

10. Select any suspicious items that you have noted previously. Drag them to the Trash.

11. Repeat the process in the following non-hidden folders (without ~):

/Library/LaunchAgents
/Library/LaunchDaemons
/Library/Application Support

12. Lastly, go to your Finder > Go and open the Applications folder. Look for subfolders with the following names and drag them to Trash.

- HorizonGlorius, (random characters)

Optional : For locked files that cannot be removed, do the following:

1. Go to Launchpad > Other folder, open the Activity Monitor.

2. Select the process you want to quit.

3. In the upper part of the window, click the Stop button.

Screenshot of Force Quit

4. Click on Force Quit button.

5. You may now delete or remove the locked file that belongs to HorizonGlorius homepage hijacker.

Step 5 : Double-check with Malwarebytes for Mac

Use Malwarebytes for Mac to do another scan to make sure the machine is already clear of viruses, malware, and adware. This efficient anti-malware application allows you to detect things that other security software was unable to recognize.

1. Download Malwarebytes for Mac from the link below.

2. Locate the downloaded Malwarebytes-Mac.pkg and install it with the default settings.

3. Run Malwarebytes for Mac. It will check for updates and download the most recent version if one is available. This is necessary for finding recent malware threats, including HorizonGlorius.

4. Once you are on the Malwarebytes dashboard, please click on the Scan button to start scanning your Mac computer.

Screenshot of Malwarebytes Dashboard

5. After the scan, Malwarebytes for Mac will display a list of identified threats, and HorizonGlorius is surely part of it. Be sure to select all items in the list. Then, click the Remove button to clean the computer.

Step 6 : Fixing the Homepage and Search Engine

Google Chrome

Remove HorizonGlorius from the Homepage and Search of Chrome

1. Open the Google Chrome browser and type the following on the address bar and press Enter on the keyboard:

chrome://settings

Screenshot of Chrome Settings

2. Go to the left sidebar and click On Startup.

3. Select "Open a specific page or set of pages" in the right panel.

Screenshot of Chrome Startup

4. Locate the unwanted Homepage URL, click on More Actions (3-dot icon), and select Edit.

5. Enter the desired web address as your home page, replacing HorizonGlorius. Click Save.

6. To set the default search engine, go to the sidebar, and this time, select Search Engine.

Screenshot of Default Search

7. Click on the Manage search engines and site search button in the right panel.

8. Find the unwanted Search Engine in the list. Click on More Actions, and then click Delete.

9. Go back to the left side bar and click Search Engine.

Screenshot of Search Engine Address Bar

10. In the right panel, choose a valid entry from the "Search engine used in the address bar."

You can now restart the Google Chrome browser to see if the unwanted homepage and search engine related to HorizonGlorius are gone.

Safari

Get Rid of HorizonGlorius from Safari's Homepage and Search

1. Open your Safari browser.

2. Go to the Safari Menu located in the upper left-hand corner, and then select Settings or Preferences.

3. In the General tab, remove the HorizonGlorius item or unwanted URL from the Homepage section. Replace it with your preferred URL to be set as your default homepage.

Screenshot of Safari Home Settings

4. Next, be sure that the "New windows open with" and "New tabs open with" fields are set to "Homepage".

5. Please click on the Search tab, and in the "Search engine" section, select Google or any valid search engine.

Screenshot of Safari Search Settings

6. You may now restart the Safari browser.

Microsoft Edge

Remove HorizonGlorius from the Homepage of Edge Browser

1. Open the Microsoft Edge browser on your Mac computer.

2. In the address bar, type or copy and paste the string below, then press Enter on the keyboard:

edge://settings/startHomeNTP

Screenshot of Edge Homepage Settings on Mac

3. Go to the "When Edge Starts" area. Under the "Open these pages" section, click More Actions (3-dot).

4. Select Edit to open the Edit Page window.

5. Input your desired address to replace the homepage settings of HorizonGlorius.

Screenshot of Edge for Mac Default Homepage

6. Click the Save button. You may now restart Microsoft Edge for Mac.

Mozilla Firefox

Delete HorizonGlorius from the Homepage and Search of Firefox.

1. Open the Mozilla Firefox browser on your Mac computer.

2. Type the following on the address bar, then press Enter on the keyboard:

about:preferences

3. Click Home in the sidebar area.

Screenshot of Firefox Homepage Settings

4. Under "Homepage and new windows", you may choose Firefox Home (Default) or Custom URLs.

5. If you chose Custom URLs, input the desired URL to replace HorizonGlorius settings.

6. To configure the default search engine, select Search in the sidebar to display the settings.

Screenshot of Firefox Search Settings

7. Under the Default Search Engine list, please select a legitimate one (i.e., Google).

8. Scroll down to "Search Shortcuts" and select an unwanted search engine.

Screenshot of Deleting Search

9. Click on the Remove button to delete the unwanted search engine. You may now restart the Mozilla Firefox for Mac.

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