What is Ka-Block!?

Ka-Block! is presented as an application that allows users to block unwanted ads in Safari. According to the description, it’s a really useful app given the number of advertisements users might see while browsing the Internet. However, there are many angry reviews stating that Ka-Block!, in fact, does nothing. Instead, it can install other unwanted apps without the user’s permission that makes your device more affected as well as reduces its performance. Therefore, we advise you to uninstall Ka-Block! as soon as possible. It is not an easy task so we have prepared a guide below that will help do things properly and quick.

How Ka-Block! gets on your Mac?

Usually, Ka-Block! appears on users’ Macbooks after users get redirected to rogue sites claiming that an Adobe Flash Player update needs to be installed, and end up installing it. As a result, several pieces of adware, malware and potentially unwanted software, including Ka-Block!, get installed on their Macs. Other ways for Ka-Block! and other browser hijackers to end up on users’ machines are users installing free software and not opting out of extra programs that are also offered for installation, or users opening files downloaded from shady websites. If that had happened and Ka-Block! took over your browser, you may follow our tutorial to remove Ka-Block! from your Mac.

Recommended Anti-malware tools:

The easiest and most modern way of removing hijackers, pop-ups, Trojans, ransomware or other viruses is to use automatic removal tools. See our Anti-malware tools below for further instructions.

Also, you can try to remove Ka-Block! manually.

Alternative solution. Step 1: Remove Ka-Block! from Mac

Ka-Block! may not have the app associated with it in Applications. However, we recommend you to inspect the list of installed applications and remove unknown or suspicious ones. Look for Ka-Block! or Ka-Block!.app.

Mac OSX:

1. Open Finder
2. In the Finder sidebar, click Applications
3. If you see Uninstall Ka-Block! or Ka-Block! Uninstaller, double-click it and follow instructions
4. Drag unwanted application Ka-Block! from the Applications folder to the Trash (located on the right side of the Dock)

Learn more about uninstallation of programs in Mac OSX

Step 2: Remove Admin Preferences from Mac

1. Open System Preferences.
2. Click on Profiles.
3. Click on AdminPrefs on the left panel.
4. Click the minus button below to delete rogue settings.

Step 3: Remove Ka-Block! from browsers

Safari:

1. Open Safari
2. Click Safari menu.
3. Choose Extensions.
4. Find Ka-Block! or other suspicious extensions.
5. Click Uninstall button to remove it.

Learn more about removing extensions from Safari.

Google Chrome:

1. Open Google Chrome
2. Push Alt + F.
3. Click Tools.
4. Choose Extensions.
5. Find Ka-Block! or other suspicious extensions.
6. Click the trash can icon to remove it.

Learn more about removing extensions from Chrome.

Mozilla Firefox:

1. Open Firefox.
2. Push Shift + Ctrl + A.
3. Choose Ka-Block! or other suspicious extensions.
4. Click Disable or Remove button.

Learn more about removing extensions from Firefox.

Step 4: Resetting your browser search and homepage settings

Reset browser setting in Safari:

1. Open Safari.
2. Click on the Safari menu.
3. Choose Reset Safari….
4. Click Reset button.

Learn more about resetting browser settings in Safari.

Reset browser setting in Google Chrome:

1. Click the Chrome menu (3 bar button) in the top right corner.
2. Choose Settings.
3. Click Show advanced settings.
4. Go to Reset browser settings section.
5. Click Reset browser settings.
6. In the dialog that appears, click Reset.

Learn more about resetting browser settings in Google Chrome.

Reset browser setting in Mozilla Firefox:

1. Open Mozilla Firefox.
2. Go to Help.
3. Go to Troubleshooting information.
4. Click Reset Firefox… button.

Learn more about resetting browser settings in Mozilla Firefox.