Fenix: [Bug] Fenix jumps up while scrolling

[andreicristianpetcu]

Steps to reproduce

Open https://mobile.twitter.com/jensimmons/status/1186639878169251840
Scroll down slowly

Expected behavior

Continuous scroll down

Actual behavior

From time to time it jumps up
https://vimeo.com/367964926

Device information

• Android device: OnePlus5t
• Fenix version: latest nightly

[andreicristianpetcu]

it happens in twitter also

it started a few days ago

[andreicristianpetcu]

here is a long thread to test on twitter https://mobile.twitter.com/jensimmons/status/1186639878169251840

[softvision-miralobontiu]

I was able to reproduce the jumping on twitter on Samsung Galaxy Tab S3 (Android 8), on the 12/09 Nightly build.

[andreicristianpetcu]

cannot reproduce on pocket anymore, only on twitter

[andreicristianpetcu]

I can see something similar on bugzilla https://bugzilla.mozilla.org/show_bug.cgi?id=567039

It works fine in Fennec

[andreicristianpetcu]

Might be a duplicate of https://github.com/mozilla-mobile/fenix/issues/5789

[boek]

https://bugzilla.mozilla.org/show_bug.cgi?id=1610952

[vesta0]

This should be a higher priority.

[reyis4402]

When you open the answer given to comments while using Twitter, the page goes to the top

[yoasif]

I see this all of the time in a Twitter PWA on a Pixel 2. Glad there was a bug filed already. :)

[andreicristianpetcu]

This seems fixed. There is this followup bug https://bugzilla.mozilla.org/show_bug.cgi?id=1615562

Should I create a new bug on github also?