Dark Reader slows Firefox and every page it touches
Dark Reader makes Firefox and web pages slow and laggy, even on sites where it is switched off, after recent updates.
Tier I · Proven The best-established problems.
39 public reports · first reported 27 December 2024 · last reported 2 October 2026
What's going wrong
Many Firefox users report that this dark-mode add-on makes the whole browser sluggish, with page loads stalling and memory use climbing, including on sites where the add-on is turned off.
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 39 reports are about, and how many came each month.
- Related problems.
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