Open Bug 1973239 Opened 9 months ago Updated 9 months ago

Import modal briefly flickers on startup after Troubleshoot Mode or Refresh Firefox...

Categories

(Firefox :: Migration, defect, P3)

Firefox 141
Desktop
All
defect

Tracking

()

Tracking Status
firefox-esr115 --- affected
firefox139 --- affected
firefox140 --- affected
firefox141 --- affected

People

(Reporter: gmoldovan, Unassigned)

Details

Attachments

(1 file)

Attached image import modal.gif

Found in

  • Nightly 141.0a1

Affected versions

  • Nightly 141.0a1
  • Firefox 140
  • Firefox 139
  • Firefox 115.25.0esr

Tested platforms

  • Affected platforms: Windows 10, Ubuntu 22.04, macOS 14

Steps to reproduce

  1. Launch Firefox Nightly.
  2. Go to about:support.
  3. Click “Troubleshoot Mode…” or “Refresh Nightly…”.
  4. Let Firefox restart.
  5. Watch for the Import modal on startup.

Expected result

  • The Import modal opens smoothly with no visual flicker.

Actual result

  • The import modal briefly flickers during its initial display.

Regression range

  • Attached screen recording shows the behavior.
  • The issue is more noticeable on Windows.
Severity: -- → S4
Priority: -- → P3
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