Windows, Mac
We have developed a completely new version of the Avast Online Security browser extension, which is now called Avast Online Security & Privacy (version 21.0.68 and later). This article applies for the new version of the browser extension.
To verify which version of the browser extension you are using, or to troubleshoot update issues, refer to the Troubleshooting section below.
Avast Online Security & Privacy is a free browser extension that lets you control who has access to your private data, and warns you about malicious websites and phishing scams.
Avast Online Security & Privacy includes the Anti-tracking and Ads opt out features. When enabled, these features prevent third parties from collecting and selling information that relates to your online behavior. You can also use the Privacy Advisor tool, which lets you easily update the settings for your online accounts to better protect your privacy. Additionally, you can use Cookie Consent Manager to automatically select cookie preferences on websites you visit.
Avast Online Security & Privacy scans the URL for every website that you visit, and alerts you about dangerous websites that may try to steal your personal information or infect your PC with malware.
In addition, when you use popular search engines (such as Google, Yahoo, and Bing), Avast Online Security & Privacy adds a colored shield icon to indicate the security status of each search result. You see one of the following messages and icons next to each search result:
No, Avast Online Security & Privacy is not an ad blocker. You may continue to see ads on your favorite websites after installing the extension. When you use Avast Online Security & Privacy, you can prevent third parties from tracking your online behavior and selling your personal data. This means that you will see fewer targeted ads (for example, ads for products you have recently viewed).
For detailed instructions on how to install and set up Avast Online Security & Privacy, refer to the following article:
Avast Online Security & Privacy is compatible with the following web browsers:
You can install and use Avast Online Security & Privacy on Windows PC or Mac.
If you are trying to remove the classic version of the browser extension, follow the steps above but instead look for the Avast Online Security tile.
⋮ Menu (three dots) ▸ More tools ▸ Extensions.… Menu (three dots) ▸ Extensions.O the Opera icon in the top-left corner of the browser, and select Extensions ▸ Extensions.X (the cross icon) in the top-right corner of the ⋮ Menu (three dots) ▸ Extensions.To learn how to use Avast Online Security & Privacy, refer to the following article:
Most websites use tracking systems to monitor visitor behavior, which allows them to obtain statistics and other data for marketing purposes. The
Anti-tracking feature in Avast Online Security & Privacy allows you to see which tracking systems are used by the websites you visit and stop websites from using these systems to track you.
For instructions on how to use Anti-tracking, refer to the following article:
Online advertisers are companies that collect information about you by tracking your online activity. This information can be used to create a profile of you as an individual, and target you with ads that appear to match your interests and behavior.
The
Ads opt out feature in Avast Online Security & Privacy lets you send opt-out requests to online advertisers. After receiving your opt-out requests, the online advertisers are legally obligated to stop collecting and selling your personal information.
For instructions on how to use Ads opt out, refer to the following article:
Many of your online accounts include settings that allow you to control who has access to your personal data. The
Privacy Advisor feature in Avast Online Security & Privacy helps you to easily locate these settings and adjust them according to your preferences.
For instructions on how to use Privacy Advisor, refer to the following article:
Cookie Consent Manager is only available if you have an Avast One or Avast Premium Security subscription.
Many websites ask your consent to accept storing cookies for your login info, passwords, cart items, etc. The
Cookie Consent Manager is a premium feature in Avast Online Security & Privacy that automatically hides cookie pop-ups on websites you visit according to your preferences. This feature is available with Google Chrome, Microsoft Edge, and Opera browsers.
For instructions on how to use Cookie Consent Manager, refer to the following article:
When Global Privacy Control (GPC) is enabled in Avast Online Security & Privacy, your browser sends a signal to every website you visit that communicates your preference for privacy.
Depending on your jurisdiction, GPC may signal the following preferences:
Websites that participate in GPC should handle your personal data according to your preferences. You can find a list of participating websites via the Global Privacy Control website.
To ensure that Global Privacy Control (GPC) is enabled, follow the steps below:
Settings (the gear icon) in the bottom-left corner.When you attempt to visit a dangerous website, you see the message Hold on, this website isn't safe, and connection to the website is blocked. We recommend clicking Avoid site to return safely to the previous webpage. Alternatively, if you are certain that the website is safe, you can click Continue anyway.
Avast Online Security & Privacy detects the following threats while you browse the internet:
By default, when you use Avast Online Security & Privacy you share anonymous usage data with Avast to help us improve the extension. This includes data about how you interact with the browser extension, as well as information about your operating system, browser, and location.
To opt out of data sharing:
Settings (the gear icon) in the bottom-left corner.You no longer share usage data with Avast.
Yes. You can use Avast Online Security & Privacy as a standalone tool if you do not have any other Avast products installed on your PC. You can also use Avast Online Security & Privacy alongside any other Avast products because the browser extension is designed to complement the privacy and security features included in our other products.
If you currently use an Avast antivirus product (such as Avast Premium Security or Avast Free Antivirus), we recommend installing Avast Online Security & Privacy alongside your Avast antivirus product. This is because Avast Online Security & Privacy includes additional privacy features, such as Anti-tracking, Ads opt out, Privacy Advisor, Cookie Consent Manager, and Global Privacy Control.
Avast Online Security & Privacy also includes security features such as Safe search, which complement the existing security features offered by our antivirus products.
You can install Avast Online Security & Privacy directly via your Avast antivirus application by going to
☰Menu ▸ Browser Extensions.
If you are an existing Avast BreachGuard user, we recommend installing Avast Online Security & Privacy alongside Avast BreachGuard. This is because Avast Online Security & Privacy includes the additional Ads opt out and Global Privacy Control features, which complement the existing privacy features offered by Avast BreachGuard.
You can install Avast Online Security & Privacy directly via the Avast BreachGuard application by going to
☰Menu ▸ Settings ▸ Extensions.
If you are an existing Avast AntiTrack user, we recommend installing Avast Online Security & Privacy alongside Avast AntiTrack. This is because Avast Online Security & Privacy includes the additional Ads opt out, Privacy Advisor, Cookie Consent Manager, and Global Privacy Control features, which complement the existing privacy features offered by Avast AntiTrack.
If the Avast AntiTrack browser extension is installed in your browser, you can use both browser extensions simultaneously without any issues.
To learn how to install Avast Online Security & Privacy, refer to the following article:
We have developed a completely new version of the Avast Online Security browser extension, which is now called Avast Online Security & Privacy.
To check which version of the browser extension is installed in your browser, review the information below:


If you still have the classic version of the browser extension, we recommend that you regularly check for available updates to ensure you can start using the new version as soon as possible.
If you still have the classic version of the browser extension (Avast Online Security version 21.0.67 and earlier), refer to the information in the relevant tab below to troubleshoot update issues.
Automatic updates for browser extensions are enabled by default in Google Chrome.
Optionally, try to manually update all of your Google Chrome browser extensions by following the steps below:
⋮ Menu (three dots) ▸ More tools ▸ Extensions.If you do not receive the update after following the steps above, try fully removing then reinstalling the browser extension.
Because update releases for browser extensions are managed by individual web browsers, we cannot guarantee that the new version will immediately be available for all users.
If you still have the classic version of the browser extension after following the steps above, you may need to wait for the update to become available in Google Chrome.
Automatic updates for browser extensions are enabled by default in Microsoft Edge.
Optionally, try to manually update all of your Microsoft Edge browser extensions by following the steps below:
… Menu (three dots) ▸ Extensions.If you do not receive the update after following the steps above, try fully removing then reinstalling the browser extension.
Because update releases for browser extensions are managed by individual web browsers, we cannot guarantee that the new version will immediately be available for all users.
If you still have the classic version of the browser extension after following the steps above, you may need to wait for the update to become available in Microsoft Edge.
Automatic updates for browser extensions are enabled by default in Opera.
Optionally, check for any available manual updates by following the steps below:
O the Opera icon in the top-left corner of the browser, and select Extensions ▸ Extensions.If you do not receive the update after following the steps above, try fully removing then reinstalling the browser extension.
Because update releases for browser extensions are managed by individual web browsers, we cannot guarantee that the new version will immediately be available for all users.
If you still have the classic version of the browser extension after following the steps above, you may need to wait for the update to become available in Opera.
Automatic updates for browser extensions are enabled by default in Avast Secure Browser.
Optionally, try to manually update all of your browser extensions in Avast Secure Browser by following the steps below:
⋮ Menu (three dots) ▸ Extensions.If you do not receive the update after following the steps above, try fully removing then reinstalling the browser extension.
Because update releases for browser extensions are managed by individual web browsers, we cannot guarantee that the new version will immediately be available for all users.
If you still have the classic version of the browser extension after following the steps above, you may need to wait for the update to become available in Avast Secure Browser.
We have developed a completely new version of the Avast Online Security browser extension, which is now called Avast Online Security & Privacy. In Avast Online Security & Privacy, we have removed the Web Reputation feature, which allowed you to rate the trustworthiness of the websites you visit.
When you use search engines, the Safe search feature will still show a colored shield icon to indicate the security status of each search result. However, in the new version of the browser extension, the security status provided by Safe search is not influenced by user ratings. This offers more accurate results and greater clarity about which websites are safe to visit.
For information about Avast Online Security & Privacy with Mozilla Firefox, refer to the following article:
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