We have ended support of our Avast Online Security & Privacy browser extension for Mozilla Firefox. If you are running Avast Antivirus, note that Avast Web Shield helps protect your Firefox browser.
Can I continue to use Avast Online Security & Privacy on other supported browsers?
Yes. Avast Online Security & Privacy will no longer be available for Mozilla Firefox, but you can use its features on other supported browsers.
To install the extension on a supported browser, click the link to go to the Avast Online Security & Privacy page of your preferred browser below:
Avast Online Security & Privacy premium features (such as Anti-tracking and Cookie Manager) will continue to work on Google Chrome or Microsoft Edge browsers if you have an Avast security product installed on the device with a valid subscription.
Why is support ending for Mozilla Firefox?
- Effort optimization: By focusing on other top browsers (Google Chrome and Microsoft Edge), we can reach a broader audience while maintaining efficiency.
 - Changing user needs: User preferences and requirements shift over time, and we want to meet those needs efficiently.
 - Technological advancements: As technology evolves, we need to adapt and allocate resources effectively.
 
What will happen to my Avast Online Security & Privacy extension on Mozilla Firefox?
The Avast Online Security & Privacy extension should have already self-uninstalled itself on your Mozilla Firefox browser.
To manually remove the Avast Online Security & Privacy extension from Firefox:
- Open Firefox and go to 
☰Menu ▸ Add-ons and themes. - Next to Avast Online Security & Privacy, click 
…More options (three dots). - Select Remove, then click Remove again to confirm.
 
Will this affect any other browser extension that Avast supports on Firefox?
No. This change is specific to the Avast Online Security & Privacy extension only.
- Avast Online Security & Privacy 22.x for Windows
 - Avast Online Security & Privacy 22.x for Mac
 
- Microsoft Windows 11 Home / Pro / Enterprise / Education
 - Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
 - Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
 - Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
 - Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1, 32 / 64-bit
 - Apple macOS 14.x (Sonoma)
 - Apple macOS 13.x (Ventura)
 - Apple macOS 12.x (Monterey)
 - Apple macOS 11.x (Big Sur)
 - Apple macOS 10.15.x (Catalina)
 - Apple macOS 10.14.x (Mojave)
 - Apple macOS 10.13.x (High Sierra)
 - Apple macOS 10.12.x (Sierra)
 
Updated on: 23/04/2024