Blocker uses high CPU even when idle
The add-on uses a lot of CPU even when idle and makes Firefox sluggish when many tabs are open.
Tier II · Emerging Problems that are still building up.
3 public reports · first reported 17 April 2024 · last reported 24 September 2026
What's going wrong
Firefox users report that this website blocker keeps CPU use high, around ten percent even when the browser sits idle in the background.
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 3 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.