Closed Bug 1698109 Opened 3 years ago Closed 3 months ago

Hiding Top sites is slow for the last 10%

Categories

(Firefox :: Top Sites, defect)

Desktop
All
defect

Tracking

()

RESOLVED INVALID
Tracking Status
firefox-esr78 --- unaffected
firefox86 --- wontfix
firefox87 --- wontfix
firefox88 --- unaffected

People

(Reporter: dcicas, Unassigned)

References

(Regression)

Details

(Keywords: regression)

Attachments

(1 file)

Attached image top sites.gif

Note
This issue only occurs when Firefox is in the default window mode(Not fullscreen)
This issue is not proton related put is still visible with proton active.

Affected versions

  • Fx 86.0.1
    Fx 87.0b9

Affected platforms
*Windows 10
Ubuntu 18.04

Steps to reproduce

  1. Start Firefox.
    (Optional) Switch Firefox to dark theme.
  2. Open a new tab with about:newtab.
  3. Click on the arrow next to top sites to hide the section.

Expected result

*The transition to hidden for top sites is smooth.

Actual result

  • The transition is not smooth because of slowing down on the last 10%.

Suggested Severity

  • S3

Regression range

Additional notes
This issue is not proton related put is still visible with proton active.
This issue only occurs when Firefox is in the default window mode(Not fullscreen)
This issue is fixed in the currently Nightly (03.12.2021)

Has Regression Range: --- → yes
Has STR: --- → yes

If this is working in Nightly, can we please try to bisect the fix?

Flags: needinfo?(daniel.cicas)
Regressed by: 1649292

about:newtab has gone through a re-design and hiding/showing the top sites is done through the use of the expandable right menu. Top Sites no longer slides out of view, but instead instantly shows or hides.

I've tried reproducing the issue on both Windows 11 and Ubuntu while Firefox is not full screen and didn't observe an obvious performance issue, either by expanding/contracting the number of rows or hiding the feature entirely, so I'm going to close this as no longer being valid.

Status: NEW → RESOLVED
Closed: 3 months ago
Resolution: --- → INVALID
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