How to remove Screencastify extension from Mac

What is Screencastify?

remove Screencastify virus from Mac

Screencastify (Screencastify – Screen Video Recorder) is browser extension allowing to capture content of your browser’s screen. However, many computer experts classify it as a “browser hijacker”. Screencastify modifies browser configuration to prevent its removal. After these manipulations, the “deleting” option will be blocked:

Delete Screencastify virus from Mac

Also, Screencastify is the main culprit responsible for countless pop-up advertisements and constant redirections in your web-browser. In addition to reducing browsing experience, you may accidentally end up on the harmful website as the result of another redirect. Therefore, there is a high risk to be infected with more malware while Screencastify is installed on your Mac. The only way to avoid this is to remove Screencastify from Mac as soon as possible. To do this – follow our step-by-step guide.


How to remove Screencastify?

  1. Remove Screencastify automatically
  2. Uninstall Screencastify from the Appications
  3. Remove rogue software from Profiles
  4. Delete malcious elements using Terminal
  5. Remove Screencastify From Browsers

Automatic removal of Screencastify

To make sure that the hijacker won’t appear again, you need to delete Screencastify completely. For this, you need to remove the application then check the drives for such leftovers as Screencastify files and registry entries.


Combo Cleaner Antivirus is a powerful tool that is able to keep your Mac clean. It would automatically search out and delete all elements related to Screencastify. It is not only the easiest way to eliminate Screencastify but also the safest and most assuring one.

Download Combo Cleaner
The full version of Combo Cleaner costs $39,95 (you get 6 months of subscription). By clicking the button, you agree to EULA and Privacy Policy. Downloading will start automatically.


Steps of Screencastify manual removal

Remove Screencastify from Applications

As it was stated before, more likely that the hijacker appeared on your system brought by other software. So, to get rid of Screencastify you need to call to memory what you have installed recently.

  1. Open a Finder window
  2. Click Applications line on the sidebar
  3. Try to find applications related to Screencastify (for example: some applications that you never installed yourself). Select them, right-click it and choose Move to Trash

Remove Screencastify from Profiles

  1. Launch System Preferences
  2. Select Profiles at the bottom of window.
  3. Choose AdminPrefs profile, click “-“ icon and enter password.

Screencastify

Remove Screencastify using Terminal

  1. Open Terminal
  2. Copy/paste:
    defaults write com.apple.finder AppleShowAllFiles YES
  3. Press Return
  4. Hold the Option/alt key, then right click on the Finder icon in the dock and click Relaunch
  5. Navigate to: /Users/yourmacname/Library/Application Support/
  6. Delete Folder: Agent
  7. Go back to Terminal and copy/paste:
    defaults write com.apple.finder AppleShowAllFiles NO
  8. Press Return
  9. Hold the Option/alt key, then right click on the Finder icon in the dock and click Relaunch

Remove Screencastify from browsers

Since most of the hijacker threats use a disguise of a browser add-on, you will need to check the list of extensions/add-ons in your browser.

How to remove Screencastify from Safari

  1. Start Safari
  2. Click on Safari menu button, then go to the Extensions
  3. Delete Screencastify or other extensions that look suspicious and you don’t remember installing them

How to remove Screencastify from Google Chrome

  1. Start Google Chrome
  2. Click on Tools, then go to the Extensions
  3. Delete Screencastify or other extensions that look suspicious and you don’t remember installing them

How to remove Screencastify from Mozilla Firefox

  1. Start Mozilla Firefox
  2. Click on the right-upper corner button
  3. Click Add-ons, then go to Extensions
  4. Delete Screencastify or other extensions that look suspicious and you don’t remember installing them

If the above-mentioned methods didn’t help in eliminating the threat, then it’s better to rely on an automatic way of deleting Screencastify.
Download Combo Cleaner
We also recommend to download and use Combo Cleaner Antivirus to scan the system after Screencastify removal to make sure that it is completely gone. The antimalware application will detect any vicious components left among the system that can recover Screencastify.

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