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Added sites still open after saving the block list

Sites added to the block list still load in Firefox, so the block silently does nothing.

Tier I · Proven The best-established problems.

8 public reports · first reported 21 September 2019 · last reported 4 February 2025

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

See a sample idea report

What's going wrong

Many Firefox users of the Block Site add-on report that after they add a website to the block list and save, the site still loads normally.

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 8 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.