Toolbar button vanishes from Firefox
The add-on's toolbar button or mailbox icon disappears after updates or reinstalls and never comes back.
Tier I · Proven The best-established problems.
12 public reports · first reported 6 July 2018 · last reported 10 August 2026
What's going wrong
Several Firefox users report that the add-on's button or icon disappears from the toolbar or from the mail window.
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 12 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.