URL: https://medium.com
Browser / Version: Firefox Nightly Mobile 67.0a1 (2019-02-10)
Operating System: Huawei P10 (Android 8.0) - 1080 x 1920 pixels (~432 ppi pixel density)
Tested Another Browser: Yes
Problem type: Design is broken
Description: Navigation menu not displayed while scrolling
Steps to Reproduce:
Expected Behavior:
The navigation menu must be displayed on the top side of the screen while scrolling.
Actual Behavior:
The navigation menu is missing.
Notes:
Watchers:
@softvision-oana-arbuzov
@softvision-sergiulogigan
@cipriansv
Browser Configuration
_From webcompat.com with 鉂わ笍_
on my pixel 2 android, in Firefox Nightly, I don't get any menu at all. Not even the white part.
but I do get it in Chrome.
This is user agent sniffing. When I change the UA string, I get the same behavior than Chrome on Firefox.
<body itemscope="" class="browser-chrome os-android is-withMagicUnderlines v-glyph v-glyph--m2 is-js " data-action-scope="_actionscope_0" style="margin-top: 0px; transition: all 0.375s ease 0s;">
vs
<body itemscope="" class="browser-firefox os-android is-withMagicUnderlines v-glyph v-glyph--m2 is-js " data-action-scope="_actionscope_0" style="margin-top: 0px; transition: all 0.375s ease 0s;">
Reaching out to our friends at Medium.com.
We'll fix that next week, thanks for the report!
Thanks @valueof!
Filed the bug internally, I'll try to get to it this week, otherwise the product team in question will deal with it.
Hi all!
Sorry to bring bad news. The product team has just updated me that they're prioritizing it as an equivalent of a P4 at Mozilla so no ETA on when it's going to be fixed.
Wish I could be of more help.
The fix which is in place right, is that instead of a position fixed at the top, the menu is crolling, so there is no more white space at least.
Thanks @valueof for the followup.
I retested the issue and it is still reproducible on my side.

Tested with:
Browser / Version: Firefox Nightly 68.0a1 (2019-06-11), Firefox Fenix (Preview) 1.0.1924
Operating System: Huawei P10 (Android 8.0) - 1080 x 1920 pixels (~432 ppi pixel density)
After retesting the issue I noticed that the navigation menu layout has changed.
Also, having the intervention disabled the navigation menu stays on the top of the screen while scrolling the page.

Tested with:
Browser / Version: Mobile 68.5a1 (2020-01-13), Firefox Preview Nightly 200113 (馃 74.0a1-20200110095023)
Operating System: Huawei P10 (Android 9.0) - 1080 x 1920 pixels (~432 ppi pixel density)
@ksy36, is this still an issue?
They now require users to be signed in in order to view articles. I've signed up for an account and tested it with an intervention disabled, the issue is still reproducible :( @cipriansv