zen-browser/desktop

The toolbar breaks when changing the browser layout

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#11595 opened on Dec 12, 2025

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 (3 comments) (2 reactions) (0 assignees)JavaScript (42,031 stars) (1,498 forks)batch import
Bugcomponent: customizable-ui-toolbarsgood first issueplatform: linuxplatform: macOSplatform: windows

Description

Preliminary Checks

  • I have read and understood the important section above.
  • I have searched existing issues and avoided creating duplicates.
  • I am not filing an enhancement request.
  • I have checked that this issue cannot be reproduced on Mozilla Firefox.
  • I have checked that this issue can be reproduced once I removed all my Mods and Custom CSS.

What happened?

When changing the browser layout, the panel of pinned extensions breaks its appearance

Expected behavior

The browser layout will change to the one it was before

Actual behavior

The pinned extensions panel is broken

Steps to reproduce

  1. Open browser settings
  2. In the "Look and Feel" tab, click on "Only Sidebar"
  3. Click on the "Sidebar and Top Toolbar"

Screenshots and videos

https://github.com/user-attachments/assets/bb1e5c6d-115a-4dd6-b927-f28c911881a8

Version

1.17.13b

What platform are you seeing the problem on?

Windows - x64

What component is this issue related to?

Customizable UI / Toolbars

Relevant log output if applicable

Contributor guide

Tech stack
javascripthtmlcss
Domain
frontenddesktop
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic knowledge of browser UI structureFamiliarity with CSS layout
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
This issue involves the pinned extensions panel breaking when switching browser layouts (e.g., from 'Only Sidebar' to 'Sidebar and Top Toolbar'). Start by examining the toolbar component files, likely in the 'src' directory related to 'toolbar' or 'panel'. Look for layout specific CSS or JavaScript that handles the transition between layouts. The provided screen recording (URL in issue) may help identify which styles or elements are affected. Check if there are existing tests for layout changes and if the issue is reproducible consistently.