Wallet extension hogs RAM and CPU in Firefox
Wallet extension uses gigabytes of RAM and CPU in the background, slowing Firefox and the whole computer.
Tier I · Proven The best-established problems.
10 public reports · first reported 2 November 2022 · last reported 26 May 2026
What's going wrong
Several Firefox users report that the MetaMask extension keeps using large amounts of memory and processor time even when the wallet is locked or unused.
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 10 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.