Firefox Sync merges old settings and wipes containers
Firefox Sync reverts or merges old container settings, re-adds deleted containers, and wipes configuration when a new device syncs.
Tier I · Proven The best-established problems.
9 public reports · first reported 12 November 2024 · last reported 27 April 2026
What's going wrong
Many users report that turning on Firefox Sync for containers brings back old and removed containers, merges default settings without asking, and sometimes wipes the whole configuration.
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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