When editing post, creating post or searching Discourse. When the keyboard opens. The whole screen goes blank. On all Discourse forums I tried. Is it the same for you? [Screenshot_2025-09-04-08-32-27-745_org.mozilla.firefox] Android 9 Firefox 142 (brand new) I have made an MP4 screen capture:

The bug is fixed in Firefox Nightly and we have to wait for an update on Firefox for Android Normal. :hourglass_not_done: Update a few minutes/hours later Woohoo it has now arrived! I’m typing this from updated Normal/Main Firefox for Android 143.0.3, without keyboard floating workaround! [IMG_20251002_231019]

Did this start happening when you updated to firefox v142? Does it happen in other browsers?

I think this blank screen bug is since and only with Firefox 142, as I see in my phone that it was updated 2 days ago. And I tried Chrome browser with no blank screen bug. I managed to upload the video, you can see that a small blank bar appears at the top of the screen. And the bottom address bar goes up to the top, each time the keyboard appears. Until I force close Firefox. It seems to be what’s causing the blank screen bug on edit. More a Firefox bug than a Discourse bug, but I don’t know how to report bugs to Mozilla. PS. I removed my off-topic MP4 upload bug, I found the reason and work-around.

Popping up the keyboard in Discourse triggers the top horizontal padding blank bar and bottom menu bar slide up, covering the whole screen. The top horizontal padding blank bar remains even when quitting Discourse. You can see this behaviour in this video: Only when I kill Firefox app that it disappears. I will post here if I find another site than Discourse that triggers this Firefox for Android 142 bug. If someone knows how to report them the bug, I didn’t find. :sob:

yeah pretty sure it’s a new Firefox bug. You can report those here Bugzilla Main Page (you do need an account though)

Thanks very much for the link, @chapoi! https://github.com/webcompat/web-bugs/issues/173785 Workaround: make the keyboard float.

Cannot reproduce this issue with the same version of Firefox on an android 15 tablet. I’m going to try to reproduce this in an android 9 emulator with a phone-styled viewport. The performance was terrible for some reason, probably my tablet’s 4gb of ram, but i will try again I tried android 9 with virtual master now, here are the results: Basically what the author said, but on my emulator window, the white does not go all the way to the top.

[image] twofoursixeight: on my emulator window, the white does not go all the way to the top. The white’s height equals the keyboard’s height. So, the bigger the keyboard is, the bigger the white will be. Thank you for reproducing! So, it’s only in Android 9 Firefox 142…? The Android 9 emulator didn’t reproduce the permanent top horizontal bar part of the bug, visible at 00:22 in below capture:

I suppose it’s something like that, but I wonder if other people can reproduce the issue on different android devices. as it does not happen on tablet viewports. I’ll test android 5, 7, and 11 later today

A little summary of the tested versions we saw: Keyboard (Gboard, SwiftKey, etc.) doesn’t matter Firefox Extensions don’t matter Firefox for Android before version 142: No bug Firefox for Android versions 142 and 142.0.2 same behaviour Real Android or emulator same behaviour Phone or tablet apparently same behaviour Android version Blank wall bug Ref. Android 9 :red_circle: BUG (9), (9 emu.) Android 10 :red_circle: BUG (10) Android 11 :green_heart: no bug (11) Android 12 Not tested yet _ Android 13 Not tested yet _ Android 14 :green_heart: no bug (14) Android 15 :green_heart: no bug (15), (15 tablet)

Can’t type with Firefox for Android version 142: Keyboard padding covers the whole screen

Product Support

ValdikSS September 5, 2025, 4:12am 10

https://bugzilla.mozilla.org/show_bug.cgi?id=1987065

Topic		Replies	Views
Drafting/editing a topic doesn't always go fullscreen in Firefox (mobile) Bug	2	855	September 25, 2022
Regular blank pages when trying to load Discourse forums in Firefox (Android) Product Support	3	887	December 21, 2023
Mobile keyboard hides composer using Microsoft Edge on Android Bug	16	3248	September 26, 2022
Reply composer still broken on firefox mobile Bug fixed	8	494	November 23, 2024
Suddenly blank page on Android with version 2.7.2 Product Support	12	1243	June 9, 2021

Can’t type with Firefox for Android version 142: Keyboard padding covers the whole screen

Related topics