thunderbird / thunderbird/thunderbird-android

Implement edge-to-edge display

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Dominant language
Kotlin
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Checklist
  • I have used the search function to see if someone else has already submitted the same bug report.
  • I will describe the problem with as much detail as possible.
App

Thunderbird for Android

App version

19.2

Where did you get the app from?

F-Droid

Android version

GrapheneOS v2026060601

Device model

Pixel 8

Steps to reproduce
  1. Enable gesture navigation in the system settings.
  2. Open the main app window with the email list.
  3. Observe how the navigation bar is displayed (edge-to-edge vs. opaque bar).
Expected behavior

Transparent navigation bar with app content drawing behind them.

Actual behavior

Thunderbird currently uses an outdated Android layout: an opaque navigation bar occupies a solid colored strip at the bottom, and content is cropped to avoid system bars. This violates Google's modern edge-to-edge recommendations.

Screenshots:

Image Image
Logs

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue in Thunderbird for Android's main email-list window with gesture navigation enabled on Android. Start by tracing how the app handles the system navigation bar and insets, then verify that the navigation bar is transparent and content draws behind it without cropping.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, kotlin
Domain
mobile
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
52/100

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