Add-on causes Firefox lag and high CPU on YouTube
Browser slows, freezes or uses high CPU while the add-on runs on YouTube.
Tier II · Emerging Problems that are still building up.
3 public reports · first reported 24 December 2024 · last reported 8 July 2025
What's going wrong
Three Firefox users say this add-on makes YouTube slow and Firefox unresponsive.
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.