Closed Bug 1217370 Opened 9 years ago Closed 3 years ago

Fennec: fast scroll swipes sometimes get less momentum than expected

Categories

(Firefox for Android Graveyard :: Toolbar, defect)

defect
Not set
normal

Tracking

(Not tracked)

RESOLVED INCOMPLETE

People

(Reporter: avih, Unassigned)

References

Details

(Whiteboard: [content perf])

This one is hard to capture in a video and it also requires going back and forth between the browsers on the same page and do many fast swipes. It's more a feeling than something I could point at concretely.

From my accumulated experience in examining scroll in Fennec and Chrome (on Android), I have a feeling that for fast/very-fast scroll swipes, chrome responds better than Fennec, more specifically that Fennec gets less initial momentum than I'd expect it to from such swipe (and less than chrome with a similar swipe on the same page).

This happens on some sites more than others. Not sure if it's related to pages rendering complexity or page size/length, or both. 

Wild guess - maybe because (slow-ish?) rendering “interferes” with the swipe/momentum registration and interpretation?

For the sake of reference, I'll state the site http://yahoo.com , but again, it's more a feeling over many sites and many swipes than something which is unique to a single site.

Tested using:
Fennec: Aurora 43.0a2 API11 2015-09-30
Chrome: 39.0.2171.93
We have completed our launch of our new Firefox on Android. The development of the new versions use GitHub for issue tracking. If the bug report still reproduces in a current version of [Firefox on Android nightly](https://play.google.com/store/apps/details?id=org.mozilla.fenix) an issue can be reported at the [Fenix GitHub project](https://github.com/mozilla-mobile/fenix/). If you want to discuss your report please use [Mozilla's chat](https://wiki.mozilla.org/Matrix#Connect_to_Matrix) server https://chat.mozilla.org and join the [#fenix](https://chat.mozilla.org/#/room/#fenix:mozilla.org) channel.
Status: NEW → RESOLVED
Closed: 3 years ago
Resolution: --- → INCOMPLETE
Product: Firefox for Android → Firefox for Android Graveyard
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