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Closed-source script manager that claims open source

Userscript manager is closed source, so users cannot verify its code despite open-source claims.

Tier II · Emerging Problems that are still building up.

4 public reports · first reported 18 December 2023 · last reported 23 August 2025

Idea report · $9 · No contacts · All sales final

See a sample idea report

What's going wrong

Several Firefox users say the Tampermonkey add-on is closed source, or was moved to closed source, and that its public code repository no longer matches the shipped version.

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 4 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.