Mac Virus

Content Styles Mac

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Content Styles

Content Styles is a common type of malware that is known for introducing changes to the browser without the permission of the user. The aim of Content Styles is to change the homepage and/or the search engine’s settings in order to start opening page-redirects.

Content Styles

The Content Styles Virus will display pop up ads and messages

The page-redirects that this app generates usually land you on sites with heavy advertising activity in them and/or ones that try to get you to buy their products. The owners of those sites pay the people behind apps like Content Styles a commission for the promotion of the website in question. This is why this unwanted app is likely to keep bothering you with its incessant advertising and page-redirecting activity as this is the main reason it has been created in the first place. The changes it makes in your Safari, Chrome, or Firefox browser are there to ensure that the advertising activity of the hijacker is as effective as possible.

Content Styles for Mac

Content Styles for Mac is a type of junkware extension of the browser hijacker category. Content Styles for Mac is known for silently getting installed in the browser and changing some of its settings in order to force the browsing program to show aggressive page-redirects and ads.

Despite being less hazardous than threats of the Ransomware, the Trojan Horse, and the Spyware category, this unwanted piece of software is certainly not something we’d advise you to keep installed in your computer. The main security concern we have about this app is that its ads may not always lead you to safe sites and pages. Sometimes, if you are unlucky, you may get redirected to sites with phishing elements or ones that spread viruses. Therefore, we believe it’s much better to uninstall Content Styles as soon as you finish reading this article.

What is Content Styles?

Content Styles is a potentially unwanted add-on for commonly used Mac browsers such as Safari, Chrome, and Firefox. Once Content Styles installs in the browser, it begins to swarm its tabs with ads and draw traffic to the sites of its partners.

It is important to avoid any advertising content that this app brings to your screen because, as we pointed out above, you can’t be sure if a given hijacker-generated ad isn’t really a link to a hazardous site. Therefore, if you wish to avoid any close encounters with Trojans, Spyware, Ransomware, or other highly dangerous threats, we advise you to keep away from those ads and close any pages that the hijacker may automatically open in your browser.

The ContentStyles app

The ContentStyles app is a junkware application that looks like a normal browser extension but its aggressive ads and automatic page-redirects put it in the category of browser hijackers. The ContentStyles app’s main goal is to financially profit its creators through various online advertising techniques.

Many users install hijackers thinking that they are some form of useful additions to their browsers because, in many cases, a hijacker would indeed look like a helpful browser extension. That is why you must be careful when installing new software and only get apps that you are sure are safe and would actually benefit you in some way. 


Name Content Styles
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Mac hijackers will spam your browser with various ads and will also introduce changes to the browser’s settings.
Distribution Method The most widely-used method for spreading hijackers is the file-bundling technique.
Detection Tool

Remove Content Styles Virus

For a quick way to remove Content Styles try to do this inside your Mac browser:

  1. Open your Mac browser.
  2. Go to Preferences.
  3. Now navigate to the extensions sub-menu.
  4. Look for any unfamiliar entries, including Content Styles.
  5. Remove Content Styles from your Mac as well as any other suspicious-looking items by clicking on the trash bin icon.

If this does not help then continue reading this article for more detailed instructions on how to get rid of Content Styles!


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 ComboCleaner to see if it can detect parasite files for you.

The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari:

You can choose the Apple menu and click on Force Quit.

Alternatively you can simultaneously press (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard).

If you have done it right a dialog box titled Force Quit Applications will open up.

In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again.

Close the dialog box/window.



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 ComboCleaner
a professional malware removal tool.

More information on ComboCleaner, steps to uninstallEULA, and Privacy Policy.

Start Activity Monitor by opening up Finder, then proceed to activity-monitor

Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the “i” button at the top. This will open up the following box:


Now click on Sample at the bottom:


Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files:

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Virus Scanner Result


The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari’s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key.

On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures.

First, Force Quit Safari again.

Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac’s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable.


Re-Launch Safari but don’t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now, Click on Preferences in the Safari menu,

Preferences in Safari

and then again on the Extensions tab,

extensions in safari

Select and Uninstall any extensions that you don’t recognize by clicking on the Uninstall button. If you are not sure and don’t want to take any risks you can safely uninstall all extensions, none are required for normal system operation.

The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using.

Again select Preferences in the Safari Menu, but this time click on the Privacy tab,
Privacy in Safari

Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication.

Still in the Preferences menu, hit the General tab

General Tab in Safari

Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
Default Home Page

Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again.

firefox-512 How to Remove Content Styles From Firefox in OSX:

Open Firefoxclick on mozilla menu (top right) ——-> Add-onsHit Extensions next.

pic 6

The problem should be lurking somewhere around here –  Remove it. Then Refresh Your Firefox Settings.

chrome-logo-transparent-backgroundHow to Remove Content Styles From Chrome in OSX:

 Start Chrome, click chrome menu icon —–>More Tools —–> Extensions. There,  find the malware and  select  chrome-trash-icon.

pic 8

 Click chrome menu icon again, and proceed to Settings —> Search, the fourth tab, select Manage Search Engines.  Delete everything but the search engines you normally use. After that Reset Your Chrome Settings.

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!

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