AdGuardSupport centerFAQAdGuard for MacTroubleshootingWebsites don’t open or ads aren’t blocked in Firefox

Websites don’t open or ads aren’t blocked in Firefox

AdGuard for Mac installs a root certificate to filter HTTPS traffic. In most cases, this happens automatically when you first launch the app.
However, Firefox and other Gecko-based browsers use their own certificate storage. If you have a master password set in Firefox, the certificate may not be installed automatically. As a result, web pages may fail to open.
To fix this, you can:
Enter your master password when prompted by Firefox
Install the certificate manually
To install the certificate manually:
Open Settings in Firefox.
Go to Privacy & Security → Certificates.
Click View Certificates.
Open the Authorities tab and click Import….
Select the file: /Library/Application Support/AdGuard Software/com.adguard.mac.adguard/AdguardCore/Adguard Personal CA.cer
Alternatively, you can download the certificate from http://local.adguard.org/cert using a Chromium-based browser (for example, Google Chrome or Microsoft Edge) while HTTPS filtering is enabled in AdGuard.
After installing the certificate, pages should open normally.

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Contact support
Downloading AdGuard To install AdGuard, click the file indicated by the arrow Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, drag the AdGuard icon to the "Applications" folder. Thank you for choosing AdGuard! Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, click "Install". Thank you for choosing AdGuard!
Install AdGuard on your mobile device
Installation
AdGuard for Android is available in the following app stores:
AppGallery
Mi Store
Samsung Galaxy Store
AdGuard can’t be published on Google Play. For more details, check out our blog. If you’re using Google Play, follow these instructions to manually install AdGuard for Android.

1. Allow downloading

If your browser displays a warning, allow downloading adguard.apk.

Installation permissions

If installations from your browser are not allowed, you’ll get a notification. In this notification, tap Settings → Allow from this source.

Note for Samsung users with One UI 6 (Android 14) and newer

On some Samsung devices, the Auto Blocker feature may prevent APK installations. To install the app:
Open your device settings.
Go to Security and privacy.
Scroll down and tap Auto Blocker.
Disable the setting.
You can re-enable this feature after the installation.

2. Install the app

In the pop-up dialog, tap Install.

3. Launch the app

Wait for the installation to complete and tap Open. All done!
Scan to download
Use any QR-code reader available on your device
Scan to download
Use any QR-code reader available on your device
Download an older AdGuard version?
This OS version isn’t supported. You can use an older version of AdGuard, but it won't receive updates
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