1544422 - CFR Pin Tabs animation wrongly shows the initial frame when it is paused

Status: NEW

(Firefox :: Messaging System, enhancement, P3)

Description

[Ciprian Muresan [:cmuresan], Ecosystem QA, OOO until the 3rd of Jul needinfo @mcoman or @poiegas]

Attachment: rec of the issue.gif

[Affected versions]:

• Firefox Nightly 68.0a1, Build ID 20190405214926
• Firefox Beta 67.b10, Build ID 20190411084603

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Prerequisites]:

• The "browser.newtabpage.activity-stream.asrouter.devtoolsEnabled" pref is set to true in about:config.

[Steps to reproduce]:

1. Start the browser with from prerequisites and navigate to about:newtab#asrouter.
2. Select the "cfr" option from the "Show messages from" drop down.
3. Scroll down to the bottom of the page.
4. Click the "Show" button for the PIN_TAB recommendation.
5. Click the CFR recommendation from the address bar.
6. Let the animation play out a bit and then pause it.
7. Observe the behavior.

[Expected results]:

• The frame is blocked in the position it was paused in.

[Actual results]:

• The initial frame is displayed.

[Notes]:

• Attached a screen recording of the issue.

Comment 1

[Kate Hudson :k88hudson]

After talking to Aaron this expected behaviour / a compromise for 67 implementation, but a fix is desired for a future release as an enhancement.