Install CryFox
Download and install CryFox for your operating system. Installation takes under a minute.
Setup in 4 steps
After installation, configure CryFox to match your privacy and performance needs.
Choose a privacy preset
Open Settings and select a privacy preset:
- Balanced — Recommended for most users
- Strict — Blocks all third-party requests
- Custom — Configure every option
Settings → Privacy → Preset Create your first isolated room
Rooms let you separate browsing contexts. Each room has its own cookies, cache, and storage.
- Create a room for work
- Create a room for research
- Create a room for sensitive tasks
Configure DNS routing
CryFox supports encrypted DNS out of the box. Choose your preferred resolver or enter a custom address.
Settings → Privacy → DNS Import team policies (optional)
If you're deploying CryFox across an organization, import a policy pack to lock settings and enforce rules.
Settings → Policies → Import Configure Privacy
CryFox ships sensible defaults. Adjust these settings to match your threat model.
Tracker Blocking
CryFox blocks known trackers by default. Toggle this on or off per-site from the address bar, or set a global default in Settings.
Settings → Privacy → Tracker Blocking Fingerprint Protection
Enable strict fingerprint defense to randomize canvas, audio, and font signals per session.
Settings → Privacy → Fingerprinting Cookie Control
Set cookie behavior per-site: allow, block third-party only, or block all. Rooms automatically isolate cookies.
Settings → Privacy → Cookies AI Data Guard
Enable AI data guard to prevent AI tools and extensions from scraping page content without your permission.
Settings → Privacy → AI Guard Tune Performance
CryFox is fast by default. These options let you push it further or reduce resource use.
Tab Hibernation
Park inactive tabs to free up memory. Configure the idle timeout.
Settings → Performance → Tab Hibernation GPU Rendering
GPU compositing is enabled by default. On low-power hardware, switch to software rendering.
Settings → Performance → Rendering Cache & Prefetch
Privacy-aware prefetching is enabled by default. Disable it for strict isolation at the cost of page load speed.
Settings → Performance → Prefetch Team Deployment
Roll out CryFox across your organization with policy packs and signed configuration.
Policy Packs
Export a policy pack from your configured CryFox instance and import it across your team.
- Lock privacy and security settings
- Push extension allowlists
- Enforce DNS routing rules
- Audit logs retained locally
Settings → Policies → Export Pack Signed Updates
All CryFox updates are signed. Rollback protection is built in — you can always revert to a previous stable build.
- Signed update chain with rollback protection
- Rollback channel in beta builds
- No forced auto-updates
Need help?
Our support team responds within 24 hours for critical security issues and deployment questions.