Current behavior

Cypress sessions are failing to record videos on Firefox 93 and 94. I checked this behavior is happening on both Windows 10 and macOS Big Sur.

Affected Cypress Versions: Looks like all (confirmed on 6.8.0, 8.1.0, 8.4.1, 8.5.0)
Affected OS: Looks like all (confirmed on macOS Big Sur and Windows 10)

Error Details

Screenshot of a spec (actions.spec.js - kitchen-sink) run on Firefox 93.

Desired behavior

Cypress sessions should be able to record videos on Firefox 93 and 94. It should work the way it's working on older Firefox versions and other browsers.

Test code to reproduce

Steps to reproduce this error:

1. Make sure you have Firefox 93 or 94 as this error is specific to Firefox 93 and above browsers only.
2. Make sure you have the cypress installed.
3. Run any spec of your choice. You may use actions.spec.js from the kitchen-sink examples
4. Observe that all the test cases pass but video processing was failed. Refer to the attached screenshot above.

Cypress Version

all

Other

No response

Edits

1. 8th November 2021 - Updated the issue a bit to point that the error is happening on Firefox 94 too.