The best Ad Blocker alternative to Firewalld is Portmaster, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Firewalld and six of them are Ad Blockers so hopefully you can find a suitable replacement. Other interesting Ad Blocker alternatives to Firewalld are RethinkDNS, NetGuard, OpenSnitch and CacheGuard Gateway.
Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.
An OpenSnitch-inspired firewall and network monitor + a pi-hole-inspired DNS over HTTPS client with blocklists.
Offers detailed per-app internet control for Android with no root required, blocks Wi-Fi and mobile connections, supports IPv4/IPv6, privacy-focused, usage logging, system app blocking, tethering support, various notification settings, and material themes.
GNU/Linux firewall enabling interactive outbound network filtering, outbound application control, blocking of ads and malware domains, centralized GUI node management, input policy configuration, SIEM integration, real-time alerts, and user-level rule customization.
CacheGuard Gateway is a free, open-source network security appliance for startups, growing businesses, and SMEs/SMBs that need enterprise-grade protection without the complexity or cost.
Firewalla is a vital security addition to every home and small business with network and IoT devices.
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