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Sign-in hangs or fails in Firefox

Signing in to the add-on fails, hangs, or never completes, and users must clear cookies or reinstall to recover.

Tier I · Proven The best-established problems.

10 public reports · first reported 23 December 2019 · last reported 13 February 2025

Idea report · $19 · No contacts · All sales final

See a sample idea report

What's going wrong

Many Firefox users cannot sign in to the Mendeley Web Importer.

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.