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Bug #1288

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Navigation bar not hidden when toggling fullscreen

Added by Juan Manuel 2 days ago. Updated 1 day ago.

Status:
New
Priority:
Next Release
Start date:
08/31/2025
Due date:
% Done:

0%

Estimated time:

Description

When toggling fullscreen by double tapping, navigation bar isn't hidden. To workaround this issue, one way is to switch or minimize the app (while on fullscreen mode), and then come back to the app.

Exiting fullscreen also has some issues, like status and navigation bars not being drawn.

See video attached.

I've tried with both enabled and disabled "Display under cutouts" preference, but the results were the same.

I can't remember exactly when this started to happen, if it was on last version or the previous one ­­­—I'm sorry about that. But I do recall it working fine some time ago. Just that the issue wasn't too annoying, besides there was a workaround.

Android 10 (API 29) LineageOS
Moto E2 surnia
Privacy Browser 3.19.3 (79) from F-Droid
WebView 137.0.7151.72


Files

fullscreen-issue.mp4 (11 MB) fullscreen-issue.mp4 Video showing the issue Juan Manuel, 08/31/2025 02:08 PM
Settings.png (210 KB) Settings.png Soren Stoutner, 09/01/2025 09:54 AM
Settings.png
Actions #1

Updated by Soren Stoutner 1 day ago

Settings.png

Can you please clarify if you have `Hide the app bar` and `Display under cutouts` enabled in the settings?

Actions #2

Updated by Juan Manuel 1 day ago

'Hide the app bar' is enabled. I've just tried disabling it, but the issue is still there (without the app bar, of course, so this works as expected).

Regarding 'Display under cutouts' , I've tried both, enabled and disabled, but I can reproduce this behaviour no matter if this setting is on or off. It makes no difference.

Actions #3

Updated by Soren Stoutner 1 day ago

Your video doesn't appear to show the problem you are describing. Can you please post a step-by-step description of what I should be seeing in the video that is buggy behavior?

Actions #4

Updated by Soren Stoutner 1 day ago

  • Status changed from New to Feedback
  • Assignee set to Soren Stoutner
Actions #5

Updated by Soren Stoutner 1 day ago

Nevermind, I had read your description as the app bar not being hidden instead of the navigation bar. I see now what you are showing in the video.

Actions #6

Updated by Soren Stoutner 1 day ago

  • Status changed from Feedback to New
  • Priority changed from 3.x to Next Release

It looks like the hiding and showing of the navigation bar is broken on API <= 29. This changed with the targeting of API 35, which significantly changed the way the app lays out in full-screen mode.

https://www.stoutner.com/privacy-browser-android-3-19/

I spent a lot of time trying to make sure this worked with all supported APIs, but apparently missed the navigation bar on API <= 29. I will take a look at what it would take to fix this after I finish Feature #1207: Refactor Privacy Browser Android's filter list system to be more like the one implemented in Privacy Browser PC.

Actions #7

Updated by Juan Manuel 1 day ago

No problem, confusing terms :)

I see, that makes sense. So it started happening since 3.19.

Thanks, and no hurries. Looking forward to that new feature. As a side note, I started trying Privacy Browser PC after upgrading to Debian Trixie. Looks promissing!

Kind regards

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