How to remove OpenH264 (Virus Removal Guide)


OpenH264 (also known as OpenH264 Video Codec provided by Cisco Systems, Inc., OpenH264 Video Codec Provided by Cisco Systems, Inc. 1.1, H.264, Open Source H.264 Codec, OpenH264 virus) is a free legitimate browser add-on and extension primarily for the Mozilla Firefox Internet Browser, but can be used across multiple browsers. Users have complained to have found a browser helper object (BHO), add-on, and extension titled OpenH264 Video Codec installed onto their Microsoft Windows computers and attached to Google Chrome and Microsoft Internet Explorer without their consent. Furthermore, users have claimed that OpenH264 can be used to serve advertisements, including in-text advertisements and generic banners.

OpenH264 Video Codec

OpenH264 Video Codec was first introduced to Mozilla Firefox v33.0. The codec is used to enhance video quality on the internet. It may be pre-installed on several internet browsers, including Mozilla Firefox, but is not a necessary component and can be removed. Users may notice the add-on after updating Mozilla Firefox.

OpenH264 Video Codec Provided by Cisco Systems

Some users have complained to have found OpenH264 Video Codec installed without their consent and have said that the application was being used to generate pop-up advertisements. After analysis it appears that OpenH264 Video Codec is not advertisement-supported, but malicious and questionable parties may replicate the title of the program for unspecified purposes. It should also be noted that in some cases disabling and removing the OpenH264 Video Codec add-on and extension can cause specific advertisements to stop appearing that are generated by third-party adware like Text Enhance.

How to remove OpenH264 (Removal Guide)

This OpenH264 Video Codec removal guide provides steps to remove potential OpenH264 Video Codec malware, unwanted programs, malicious files, and OpenH264 Video Codec by Cisco Systems advertisements on Chrome, Firefox, and Internet Explorer.

Step 1: Scan your computer for malware

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2. Install the free or full version of Malwarebytes Anti-Malware. The full version enables real-time protection to block malware and unwanted programs from infecting your computer, while the free version is just a free scan and removal tool.

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3. Once Malwarebytes is installed, run the Anti-Malware program. Malwarebytes may automatically begin to update and scan your computer at this point.


4. Once Malwarebytes has been opened, if a scan or update has not automatically initiated, please click the large Scan Now button or visit the “Scan” tab to manually run a scan. Before the scan is started Malwarebytes may ask to update the software, make sure to do so if prompted to.

5. Once the scan is complete, click the Quarantine All button to isolate and remove the detected files. You may be asked to reboot your computer after removal to completely remove detected files.

malwarebytes quarantine log

6. You can chose to visit the History tab and click Delete All to remove these files from the Quarantine log, although these files no longer provide a threat.

If you are still having issues with malware after using Malwarebytes it is recommended to download and install a second opinion scanner such as HitmanPro by Surfright to eradicate existing malicious files and automatically repair corrupted settings.

Step 2: Cleanup and repair settings

1. Install the free or full version of CCleaner by Piriform.

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CCleaner Analyze Cleaner

2. Once installed, open the program and navigate to Cleaner > Windows/Applications and click the Analyze button. Afterwards, click the Run Cleaner button on the bottom right of the program interface.

CCleaner Startup

3. Next, navigate to Tools > Startup and search through each tab starting from windows, internet explorer, etc., all the way to Content Menu, for additional suspicious entries and click Disable and Delete once anything is found.

4. To automatically uninstall OpenH264 Video Codec provided by Cisco Systems, Inc. using CCleaner, navigate to the Uninstall tab and search for the program in the list of installed programs. Uninstall the unwanted software as selected by clicking the Run Uninstaller button.

Step 3: Uninstall OpenH264 Video Codec provided by Cisco Systems, Inc.

1. Access Windows Start Menu and navigate to the Control Panel (on Windows 8, right click the bottom left corner to gain access to the Windows 8 Start Menu. Windows 8 may also select Programs and Features).

OpenH264 Video Codec provided by Cisco Systems, inc

2. In Windows Control Panel, click Uninstall a program or Add and remove a program in the Programs section (If you are using Windows 8 you will bypass the Control Panel).

3. In the list of installed programs, search for OpenH264 Video Codec provided by Cisco Systems, Inc.. Once the program is located, double click the unwanted program or select it with your mouse and click the Uninstall button. *Follow any on-screen instructions that may prompt to remove this program. Repeat the steps to remove additional unwanted programs.

4. Restart your computer.

Step 4: Remove OpenH264 browser attachments

Google Chrome

1. Click on the Customize icon (3 bar icon) next to the address bar and navigate to More tools > Extensions.

2. Search for the OpenH264 Video Codec extension and other suspicious extensions and remove them individually by clicking the trashcan icon next to it.

Mozilla Firefox

1. Type Ctrl+Shift+A.

2. On the Extensions and Plugin search for the OpenH264 Video Codec add-on and other suspicious add-ons and remove them if located.

Microsoft Internet Explorer

1. Click Tools and select Manage add-ons.

2. On the Toolbars and Extensions tab search for the OpenH264 Video Codec add-on, click it, and click the Remove button. Remove other suspicious add-ons if found. If the Remove button does not appear you must first uninstall associated software through the Control Panel.

If you are still experiencing issues removing potential OpenH264 Video Codec malware we recommend to perform a system restore/recovery or a reset/refresh for Windows 8.