Dezipper Toolbar

What is Dezipper?

Dezipper is a deceptive application that supposedly provides users with file compress/decompress functionality - "Easy file compressions - performed through the Dezipper toolbar and supporting application.". These false claims are used to trick users into believing that Dezipper is a legitimate and useful browser extension.

In fact, it is categorized as a potentially unwanted browser-hijacking program. Following successful infiltration, Dezipper modifies Internet Explorer, Google Chrome, and Mozilla Firefox browser settings, and tracks Internet browsing activity.

This browser hijacker assigns the default search engine, homepage, and new tab URL settings to the ask.com website. In addition, it installs a number of browser plug-ins and apps that prevent users from rolling back these changes.

In doing so, Dezipper causes unwanted browser redirects without users' consent, thereby significantly diminishing the Internet browsing experience. Dezipper is developed to gather various Internet browsing-related information. This app continually monitors users' Internet browsing activity and collects various information that can be personally identifiable.

This collected data is later shared with third parties and can be misused to generate revenue. Thus, having Dezipper installed on your system could lead to various privacy issues. For these reasons, we strongly recommend that you uninstall Dezipper immediately.

The developers of Dezipper (Mindspark Interactive Network) have released tens of identical rogue apps such as MergeDocsOnline, ListingsPortal, and EasyMailLogin. Although these toolbars offer different features, all have identical behavior.

All applications developed by this company give fake promises simply to trick users to install - their purpose is to generate revenue for the developers. After infiltrating the system, Dezipper and other potentially unwanted programs (PUPs) merely cause unwanted browser redirects and collect personal data - they provide no real value for the user.

How did Dezipper install on my computer?

Although Dezipper has an official download website, most users inadvertently install this application with regular (mostly free) software. Many users do not express enough caution when downloading and installing software - they rush these processes and skip most/all steps.

Therefore, developers intentionally hide rogue applications within the 'Custom' or 'Advanced' settings. By skipping this section, users often inadvertently install applications such as Dezipper, thus exposing their systems to high-risk computer infections.

How to avoid installation of potentially unwanted applications?

Never rush download and installation of applications. Pay close attention and select the 'Custom' or 'Advanced' settings. Closely analyze these processes and decline all offers to install third party applications - this will avoid installation of infectious software and threats to your privacy.

Dezipper browser hijacker installer set-up:

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Quick menu:

• What is Dezipper?
• STEP 1. Uninstall Dezipper application using Control Panel.
• STEP 2. Remove Dezipper redirect from Internet Explorer.
• STEP 3. Remove Dezipper browser hijacker from Google Chrome.
• STEP 4. Remove Dezipper homepage and default search engine from Mozilla Firefox.
• STEP 5. Remove Dezipper redirect from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Dezipper browser hijacker removal:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window: look for “Dezipper Toolbar & Supporting Application”, select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted programs that cause browser redirects to the Dezipper website, scan your computer for any remaining unwanted components. To scan your computer, use recommended malware removal software.

Dezipper browser hijacker removal from Internet browsers:

Video showing how to remove browser redirects:

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for "Dezipper", "Toolbar BHO", and "dybar.dll", select these entries and click "Remove".

Change your homepage:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Internet Options", in the opened window, remove hxxp://home.tb.ask.com and enter your preferred domain, which will open each time you launch Internet Explorer. You can also enter about: blank to open a blank page when you start Internet Explorer.

Change your default search engine:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". In the opened window, select "Search Providers", set "Google", "Bing", or any other preferred search engine as your default and then remove "Ask Web Search".

Optional method:

If you continue to have problems with removal of the dezipper browser hijacker, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click on "Extensions". Locate "Dezipper", select this entry and click the trash can icon.

Change your homepage:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings". In the "On startup" section, click "set pages", hover your mouse over hxxp://home.tb.ask.com and click the x symbol. Now, you can add your preferred website as your homepage.

Change your default search engine:

To change your default search engine in Google Chrome: Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings", in the "Search" section, click "Manage Search Engines...", remove "Ask" and add or select your preferred domain.

Optional method:

If you continue to have problems with removal of the dezipper browser hijacker, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions" and remove "Dezipper".

Change your homepage:

To reset your homepage, click the Firefox menu (at the top right corner of the main window), then select "Options", in the opened window, remove hxxp://home.tb.ask.com and enter your preferred domain, which will open each time you start Mozilla Firefox.

Change your default search engine:

In the URL address bar, type about:config and press Enter.
Click "I'll be careful, I promise!".
In the search filter at the top, type: "ask.com"
Right-click on the found preferences and select "Reset" to restore default values.

Optional method:

Computer users who have problems with dezipper browser hijacker removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active and click Safari menu, then select Preferences...

In the preferences window select the Extensions tab. Look for any recently installed suspicious extensions and uninstall them.

In the preferences window select General tab and make sure that your homepage is set to a preferred URL, if its altered by a browser hijacker - change it.

In the preferences window select Search tab and make sure that your preferred Internet search engine is selected.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the top right corner of Microsoft Edge), select "Extensions". Locate any recently-installed suspicious browser add-ons, and remove them.

Change your homepage and new tab settings:

Click the Edge menu icon  (at the top right corner of Microsoft Edge), select "Settings". In the "On startup" section look for the name of the browser hijacker and click "Disable".

Change your default Internet search engine:

To change your default search engine in Microsoft Edge: Click the Edge menu icon  (at the top right corner of Microsoft Edge), select "Privacy and services", scroll to bottom of the page and select "Address bar". In the "Search engines used in address bar" section look for the name of the unwanted Internet search engine, when located click the "Disable" button near it. Alternatively you can click on "Manage search engines", in the opened menu look for unwanted Internet search engine. Click on the puzzle icon near it and select "Disable".

Optional method:

If you continue to have problems with removal of the dezipper browser hijacker, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

A browser hijacker is a type of adware infection that modifies Internet browser settings by assigning the homepage and default Internet search engine settings to some other (unwanted) website URL. Commonly, this type of adware infiltrates operating systems through free software downloads. If your download is managed by a download client, ensure that you decline offers to install advertised toolbars or applications that seek to change your homepage and default Internet search engine settings.

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