Add-on hangs on Loading and never connects to the app
Add-on stays on a Loading screen and never connects to the FDM desktop app.
Tier I · Proven The best-established problems.
16 public reports · first reported 6 July 2019 · last reported 7 February 2026
What's going wrong
Many Firefox users say the add-on opens to a Loading message and never shows their downloads, even after reinstalling.
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 16 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.