Browsers in 2018 faced complex security challenges as tracking techniques, cryptocurrency mining scripts, and exploit kits evolved rapidly. Choosing a secure browser that balances privacy controls, sandboxing, and update discipline became essential for everyday users.
This guide details the most secure browsers available in 2018, compares their key security features, and explains how to make safer browsing decisions on desktop and mobile devices.
| Browser | Default Sandboxing | Extended Tracking Protection | Security Update Frequency | Open Source |
|---|---|---|---|---|
| Tor Browser | Strong process isolation, circuit-level anonymity | Very High, anti-fingerprinting on by default | Continuous, aligned with Tor releases | Yes |
| Firefox | Multi-process with site isolation options | Enhanced Tracking Protection in 60+ | Weekly upstream, security updates weekly | Yes |
| Google Chrome | Per-site sandboxing, site isolation opt-in | Basic protections, Safe Browsing Opt-in | Stable channel updates every 2-3 weeks | No |
| Brave | Chromium sandbox, fingerprinting shields on by default | Shields block trackers and ads | Frequent, tied to Chromium release | No |
| Microsoft Edge (Chromium-based preview in 2018) | Windows defender SmartScreen, sandbox | Tracking Prevention set to Balanced by default | Rapid, aligned with new Chromium channel | No |
Hardening Settings in Firefox
Firefox offered the best combination of open source transparency and hardened security settings in 2018. Users could enable strict tracking protection, resist fingerprinting, and fine-tune certificate checks from about:config. The Extended Support Release channel provided long-term stability for enterprises that required rigorous change management.
Sandboxing and Attack Surface Reduction
Google Chrome and its derivatives like Brave relied heavily on sandboxing to limit exploit impact. Each site typically ran in a separate process, with site isolation available to reduce same-site data leaks. Attack surface reduction options, such as disabling legacy plug-ins and clearing site data on exit, further minimized persistence risks.
Privacy Focused Browsers and Anti Fingerprinting
Tor Browser focused on anonymity by routing traffic through multiple relays and enforcing a uniform look across users. Its Security Slider prevented risky JavaScript and font features that could deanonymize users. Other privacy oriented choices included disabling WebRTC and enforcing HTTPS everywhere, significantly reducing metadata leakage.
Enterprise and Managed Deployment Considerations
Large organizations favored browsers that supported centralized policy control, such as group policies for Chrome and Firefox. Silent security updates ensured that critical fixes were applied consistently across endpoints. Network level protections, like proxy inspection and SSL/TLS decryption, provided additional visibility without sacrificing baseline encryption.
Recommendations for Safer Browsing in 2018
- Prefer browsers with strong sandboxing and frequent security updates such as Firefox and Chrome.
- Enable strict tracking protection and anti fingerprinting settings, particularly in privacy focused browsers like Tor Browser.
- Use reputable ad and script blockers, but understand that they complement rather than replace core browser protections.
- Deploy browsers in locked down configurations via enterprise policies to enforce security standards across devices.
- Keep all browsers up to date and schedule regular audits of extensions and permissions.
FAQ
Reader questions
Does using a browser security extension guarantee protection from all trackers in 2018?
No. While extensions like uBlock Origin and Privacy Badger blocked many third party trackers, some first party tracking and advanced fingerprinting techniques still required browser level settings and careful configuration to limit exposure.
Is it safe to keep WebRTC enabled on browsers like Chrome and Brave?
Keeping WebRTC enabled can expose your local and public IP addresses through certain sites. Disabling WebRTC or using extension addons prevents VPN and proxy leaks that could compromise privacy.
How frequently did Firefox Extended Support Release receive security patches in 2018?
Firefox ESR received security updates roughly every 42 days, coordinated with major browser vendors to patch vulnerabilities before public exploitation became widespread.
Can sandboxing alone prevent all endpoint compromises in corporate environments?
No. While sandboxing limits the impact of some exploits, social engineering, malicious documents, and weak credential practices could still lead to compromise. Layered defenses, including endpoint detection and response, remain essential.