[Notes}: - based on comment from another issue, and a quick double check with Amy https://bugzilla.mozilla.org/show_bug.cgi?id=1472472#c11 [Affected versions]: - 62.0.3, 63.0b12, 64.0a1 [Affected platforms]: - win 10x64, Ubuntu 16.04LTS, macOS 10.11 [Steps to reproduce]: 1. Launch Firefox; 2. Access any web-page(even this one); 3. Click on the Bookmark this page button(star); 4. Wait for the dropdown menu to close or click on the done button [Expected result]: "Animation reference - note the order of animation. Star drops in library and confirmation appears after. The library icon and confirmation message fades out at the same time in the span of 200ms." [Actual result]: - the star and the confirmation message are started instantly; [Regression range]: - traced it back to Bug 1459907 - feature implementation; - not a regression; [Additional notes]: - 60.2.2ESR not affected; - attached screen recording with the current animation;

Attached a screenshot with the frame in which they start.

Not sure if we should track animations here or in Theme?

The confirmation hint is triggered from JS, so this should probably be fixed there.

This was implemented like this from the get-go. Not a regression.

Oops, sorry, I read the first comment wrong.