Closed Bug 1481519 Opened 5 years ago Closed 5 years ago

Enable tab warming by default on macOS


(Firefox :: Tabbed Browser, enhancement)

Not set



Firefox 63
Performance Impact high
Tracking Status
relnote-firefox --- 63+
firefox63 + fixed


(Reporter: mconley, Assigned: mconley)



(Whiteboard: [fxperf:p1])


(1 file)

Now that bug 1453080 is closed out, we're not dropping frames when hovering tabs when warming, so I think we're good to let warming ride out on release on macOS.
Assignee: nobody → mconley
Comment on attachment 8998282 [details]
Bug 1481519 - Let tab warming ride out to release on macOS. r?florian

Florian Quèze [:florian] has approved the revision.
Attachment #8998282 - Flags: review+
Pushed by
Let tab warming ride out to release on macOS. r=florian
Release Note Request (optional, but appreciated)
[Why is this notable]: Makes tab switching on macOS feel faster. This already went out to Windows and Linux in Firefox 61, and now macOS is catching up.
[Affects Firefox for Android]: No.
[Suggested wording]:

Faster tab switching in the majority of cases for our macOS users.

[Links (documentation, blog post, etc)]:
relnote-firefox: --- → ?
Closed: 5 years ago
Resolution: --- → FIXED
Target Milestone: --- → Firefox 63
Added to 63 nightly notes, for the final release notes, this may be reworded and included in a performance improvements section as we did when we mentioned this feature for Linux and Windows in 61 notes
Note - I may have jumped the gun here. Letting this ride the trains is conditioned upon the client storage stuff[1] riding the trains as well. I'll see what the state of that is, and then update accordingly.

Tracking to make sure we either relnote it for 63 or revert the patch if it shouldn't ride the trains
Performance Impact: --- → P1
Whiteboard: [fxperf:p1][qf:p1:f64] → [fxperf:p1]
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