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Using a firewall (like Windows Firewall or Little Snitch on Mac) to block specific Adobe executables is often safer than modifying system-wide hosts files.
(optional): Run sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder to clear the DNS cache.
The hosts file is located at:
For a more reliable method that isn't bypassed by hardcoded IP addresses, many users recommend blocking Adobe executables (like Acrobat.exe Windows Defender Firewall with Advanced Security New Outbound Rule Select the path for the Adobe app. Block the connection GitHub - Ruddernation-Designs/Adobe-URL-Block-List
Are you trying to resolve a (like high CPU usage or data privacy concerns)?
Because some modern Adobe services use hardcoded IPs or alternative resolution methods, users often complement hosts blocking with a Windows Defender Firewall rule: Adobe Hosts File Block List
The file has no extension and requires to save changes. File Location: Windows: C:\Windows\System32\drivers\etc\hosts . macOS / Linux: /etc/hosts . Edit Process (Windows):
The repository includes not just domain names but also IP addresses, providing comprehensive coverage for both host-level and firewall-level blocking strategies. Users can contribute to the list by opening issues or forking the repository and adding additional domains they have discovered.
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The legality of blocking Adobe domains depends heavily on your jurisdiction and your specific use case. For legitimate, paying customers who simply wish to block telemetry or prevent intrusive pop-ups that should not appear for valid subscribers, the legal position is more defensible. However, using a block list to circumvent license validation for unlicensed software likely violates Adobe‘s Terms of Service and may constitute software piracy in many jurisdictions.
Use arrow keys to move to the end of the file and paste the list. Press Ctrl + O then Enter to save, and Ctrl + X to exit. Potential Issues and Risks While effective, modifying your hosts file has drawbacks:
The Adobe-URL-Block-List has garnered significant attention from the community, with over 1,200 stars on GitHub. The repository is continuously updated, with the latest activity recorded as recently as April 2026, making it one of the most reliable sources for keeping your block list current. Can’t copy the link right now
A typical block list looks like this. Adding these lines to your hosts file tells your computer that these Adobe servers do not exist on the internet:
As Adobe continues to evolve its activation and telemetry infrastructure, keeping your block list current is an ongoing challenge. Several strategies can help: