thunderbird / thunderbird/thunderbird-android
Battery Usage
Nobody has claimed this yet.
- Dominant language
- Kotlin
- Stars
- 14k
- Forks
- 2.8k
- Avg merge
- 3d 3h
- Merged PRs (30d)
- 57
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
20.0
Where did you get the app from?
Other
Android version
GrapheneOS 2026062301
Device model
Pixel 10 Pro XL
Steps to reproduce
Create 3-4 IMAP accounts and run in background.
Expected behavior
Doesn't use a ton of battery
Actual behavior
I'm seeing ~22% battery usage for the thundebird app. I rarely use it, so it's mostly in the background.
I do have allow background usage on (for obvious reasons).
Is this expected, or is it a bug? I use OpenPGP on all accounts, and all email is encrypted on Stalwart.
Logs
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the report with 3–4 IMAP accounts running in the background on Thunderbird for Android 20.0, then inspect Android battery usage and available logs. Compare behavior with background usage enabled, including the reported OpenPGP and Stalwart setup. Done means determining whether the battery use is expected or identifying and fixing excessive consumption.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, kotlin
- Domain
- mobile, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100