Running Optimizer Mac

Running Optimizer

Running Optimizer is a potentially unsafe Mac app that functions as a page-redirecting browser add-on. The way Running Optimizer works is it hijacks the main browser’s search engine and homepage address and then starts injecting them with ads and sudden page redirects.

Running Optimizer Mac

The Running Optimizer App on Mac

Typically, apps like this one aren’t restricted by compatibility limitations and can get installed on all the most popular browsers, including Firefox, Safari, Chrome, Opera, and others. Oftentimes, users don’t even know how the unwanted application got added to the browsers because software like Running Optimizer oftentimes uses stealth tactics to get distributed. For instance, if the unwanted app is included in a file bundle and hidden under the Advanced setup settings, many users would not notice it and install the main program from the bundle while also getting the browser-redirecting tool as well.

Running Optimizer for Mac

Running Optimizer for Mac is a browser hijacker for Mac computers that aims to inject ads into the users’ search results. Running Optimizer for Mac has also been reported to cause the browser it is installed on to suddenly redirect the user’s traffic.

While the app itself does not harm the computer directly and its goal is not malicious, it is highly inadvisable to allow such software to freely operate from within your browser. Even if you have willingly installed the app only to later find out that it has unpleasant characteristics related to ad-generation and browser redirects, it is still advisable to quickly find a way to uninstall it and remove any changes that it may have made inside your browser.

What is Running Optimizer?

Running Optimizer is a software component that can cause Mac browsers to suddenly send users to unknown and, in some cases, potentially unsafe sites. The goal of Running Optimizer is to make money from advertising but not all of its ads can be confirmed as safe.

Most users wish to remove hijackers like Running Optimizer, Operative Fraction, Instant Effect or Nearwoodce  because it disrupts their regular browsing but there is an even more important reason why it is critical that you get rid of such software the moment you notice that it has been added to your browser. Most browser hijacker creators don’t really care about what ads and sites their software promotes and how safe they might be. This means that, even if the hijacker itself will likely not damage your computer, it could still get it exposed to more serious threats, including various forms of viruses and malware (Trojans, ransomware, rootkits, phishing malware, spyware, and more).

The RunningOptimizer app

The RunningOptimizer app is a rogue Mac app that injects ads in the browser and causes it to automatically open unknown sites. The RunningOptimizer app’s presence in your browser may get your Mac compromised and exposed to threats, which is why it must be removed.

If you want to avoid the risk of getting your machine infected by a Trojan horse or a Ransomware cryptovirus, we suggest you follow the guide we’ve prepared for you in order to uninstall the browser-redirecting hijacker and to remove any changes that it has made inside your browser.



Name Running Optimizer
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms The symptoms you can expect from a browser hijacker are sudden changes in your main browser as well as unexpected page redirects to web locations full of ads.
Distribution Method The typical distribution method for this type of software is the implementation of file bundles that carry the hijacker “hidden” under the Custom/Advanced installation settings.
Detection Tool

Remove Running Optimizer App from Mac

For a quick way to remove Running Optimizer 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 Running Optimizer.
  5. Remove Running Optimizer 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 Running Optimizer!

Running Optimizer Mac

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.

Running Optimizer Mac


Start Activity Monitor by opening up Finder, then proceed to Running Optimizer Mac

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:

Running Optimizer Mac

Now click on Sample at the bottom:

Running Optimizer Mac

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:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
Running Optimizer Mac
Drag and Drop File Here To Scan
Running Optimizer Mac
Analyzing 0 s
Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
    This scanner is based on VirusTotal's API. By submitting data to it, you agree to their Terms of Service and Privacy Policy, and to the sharing of your sample submission with the security community. Please do not submit files with personal information if you do not want them to be shared.

    Running Optimizer Mac

    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.

    Running Optimizer Mac

    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,

    Running Optimizer Mac

    and then again on the Extensions tab,

    Running Optimizer Mac

    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.
    Running Optimizer Mac

    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,
    Running Optimizer Mac

    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

    Running Optimizer Mac

    Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
    Running Optimizer Mac

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

    Running Optimizer Mac How to Remove Running Optimizer From Firefox in OSX:

    Open Firefoxclick on Running Optimizer Mac (top right) ——-> Add-onsHit Extensions next.

    Running Optimizer Mac

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

    Running Optimizer MacHow to Remove Running Optimizer From Chrome in OSX:

     Start Chrome, click Running Optimizer Mac —–>More Tools —–> Extensions. There,  find the malware and  select  Running Optimizer Mac.

    Running Optimizer Mac

     Click Running Optimizer Mac 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!


    About the author


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

    Leave a Comment