Open Bug 1544688 Opened 3 years ago Updated 3 years ago

Animation Tab - animation not selected back for 2nd value of negative timer after being set to long values


(DevTools :: Inspector: Animations, defect, P3)



(firefox66 wontfix, firefox67 fix-optional, firefox68 fix-optional)

Tracking Status
firefox66 --- wontfix
firefox67 --- fix-optional
firefox68 --- fix-optional


(Reporter: cfogel, Unassigned)




(Keywords: regression)


(1 file)

Affected versions

  • 67.0.b10, 67.0.b11(snap), 66.0.3, 68.0a1 (2019-04-15)

Affected platforms

  • Windows 10, macOS 10.13, Ubuntu 16.04;

Steps to reproduce

  1. Launch Firefox;
  2. Access the following link:
  3. Open DevTools, Inspector - Animations tab;
  4. In the inspector section, click on the <ball negative-delay> div;
  5. In the rules section click to modify the animation second value;
  6. Increase the value of the timer adding extra numbers (ex: 10s to 10000000000s or more);
  7. Revert the value to the initial one.

Expected result

  • the value is updated;

Actual result

  • the animation is no longer selected in the Animations tab;

Regression range

  • Introduced with the new animation inspector;
  • Potential regressor: bug 1445825(new anim. inspector), bug 1480027(fix for a reported issue);
  • This scenario was not covered by the initial bug since the inspector became blank;

Additional notes

  • attached recording with the issue;
  • as per the attachment, on invalid values the element is selected again but for exaggerated values it's not working.
Has Regression Range: --- → yes
Has STR: --- → yes

Thank you for reporting the issue, Cristi!
I could reproduce it.

Priority: -- → P3
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