Extension spikes browser CPU use and slows startup
The extension drives browser CPU use to 20 to 60 percent and slows Firefox startup, even when pages are idle.
Tier I · Proven The best-established problems.
9 public reports · first reported 13 February 2019 · last reported 19 February 2026
What's going wrong
Firefox users report that this add-on pushes CPU use far above normal, sometimes to around 60 percent, and that idle Firefox runs hot and drains laptop batteries.
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 9 reports are about, and how many came each month.
- Related problems.
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