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Sites still see the real browser despite the spoof

Sites still detect the real browser behind the spoofed user agent through fingerprint checks, mobile markers and proxies.

Tier I · Proven The best-established problems.

10 public reports · first reported 26 November 2017 · last reported 5 October 2025

Idea report · $19 · No contacts · All sales final

See a sample idea report

What's going wrong

Many Firefox users who spoof their browser find that websites still work out the real browser.

AI-assisted: written with the help of AI from the reports. The idea report has the full summary.

In the idea report

  • The full summary.
  • The products the 10 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.