Closed Bug 1852769 Opened 11 months ago Closed 5 months ago

Browser becomes unresponsive after exiting fullscreen mode while watching a video on vimeo.com

Categories

(Web Compatibility :: Site Reports, defect, P3)

Product:
Web Compatibility
Component:
Site Reports
Version:
Firefox 119
Platform:
Desktop
Windows 10
Type:
defect

Tracking

(Not tracked)

Status:
RESOLVED WORKSFORME

People

(Reporter: ctanase, Unassigned)

References

(
URL
)

Details

Environment:
Operating system: Windows 10
Firefox version: Nightly 119.0a1 (2023-09-11)

Steps to reproduce:

  1. Go to any video (e.g. https://vimeo.com/857642601 )
  2. Play the video and enter fullscreen mode.
  3. Exit fullscreen mode.
  4. Observe the behaviour.

Expected Behaviour:
The video works correctly after exiting fullscreen mode.

Actual Behaviour:
The browser and the page becomes unresponsive when exiting fullscreen mode.

Notes:

  1. Performance profile: https://share.firefox.dev/45LdBAR
  2. Reproducible on Firefox Release as well
  3. Reproduces regardless of the ETP status
  4. Not reproducible on Chrome
  5. Issue found during WebCompat team [Top100] websites testing

Verified this issue and could not reproduce it on Firefox versions 122 and 124.

Tested with:

Browser / Version: Firefox Release 122.0.1 (64-bit)/ Firefox Nightly 124.0a1 (2024-02-17) (64-bit)
Operating System: Windows 10 PRO x64

Status: NEW → RESOLVED
Closed: 5 months ago
Resolution: --- → WORKSFORME
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