Browser security versus antidetect

A secure browser reduces attack surface. An antidetect browser splits sessions. Those are different jobs. Rankings that mash them together sell a feeling. This page is the privacy-cluster comparison. The antidetect hub has its own “most secure browsers” note. I will not retell that ranking here.

Hardening tries to make one daily driver leak less and break less. Isolation tries to keep Brand A from sharing Brand B’s cookies on the same Windows PC. You can want both. You cannot get the second from the first.

This sits in the Privacy hub because the mix-up is a custody mix-up. People install a locked-down browser and think the drawer appeared.

What hardening actually buys

Sandboxing, site isolation, fewer dangerous defaults, tracker blocking, automatic HTTPS, a smaller extension set. That is how you read mail without turning the browser into a junk drawer. It does not create a second cookie database for a second Ads Manager.

Extensions inside a profile still apply. A hardened browser with twenty unpacked zips is not hardened. An antidetect profile with the same zips is not isolated in any useful security sense either.

What isolation actually buys

Separate user-data directories. Separate cookie stores, localStorage, and IndexedDB. A fingerprint seed that is meant to stay put for that profile. A proxy field per profile. None of that is a replacement for Windows Update.

MaskWright encrypts profiles.json with AES-256-GCM. Encryption at rest does not wrap the Chromium tree. A secure-browser roundup that says “encrypted profiles” without that split is doing the same slogan work we refuse.

Leftover traffic is not a hardening score

What leaves this machine lists updater, ads feed, dashboard iframes, geo lookups. Geo lookups leave is one row. A Mullvad-style browser might leak less to ad networks in daily browsing. Our operator UI still loads ad iframes by design. Different product, different leftover.

Downloads folder discipline is a leak hardening will not fix if two profiles share a tray. Pre-made cookies are a security incident you import on purpose.

On my own tower the daily driver is updated Edge or Chrome with few extensions, for mail and the rest of life. MaskWright holds named work profiles. I do not install password-stealing “coupon” extensions in either. I do not treat canvas noise as antivirus. If a site is hostile, I close it. If a download is a random exe, I do not run it in a profile that also holds Stripe.

MaskWright’s leftover ads iframes are a security surface in the operator UI, not in Seller Central. Treat the dashboard like a browser with ads. Keep money tabs in launched profiles, not in the Electron chrome.

The unsigned custom Chromium with --no-sandbox on Windows is a fact I will keep repeating so nobody files this app under a hardening award. Use BitLocker. Use a standard Windows user for day work if you share a household. Isolation still does not replace that.

If a roundup still lists MaskWright under “most secure,” they ranked the wrong axis. Isolation is the axis we ship.

FAQ

Should I run MaskWright as my only browser?

I would not. Keep a normal hardened browser for personal life. Use named profiles for work logins that must not share storage.

Is `--no-sandbox` on the Windows custom core a security feature?

No. It is a launch constraint for an unsigned chrome.exe on Windows. Do not file it under “most secure.”

Can I combine both?

Yes: few extensions, OS disk encryption, isolated folders. Download MaskWright for the folders. Keep the hardened browser for everything that is just you.

Isolation is not a security award. Security is not a second cookie store. Pick the sentence you needed, then the tool.