[Pkg-utopia-maintainers] Bug#1144899: flatpak update fails: Decompressed delta part exceeds configured limit

Antonio antdev66 at gmail.com
Thu Aug 20 07:00:23 BST 2026


Package: flatpak
Version: 1.18.1-1
Severity: normal
X-Debbugs-Cc: antdev66 at gmail.com

Dear Maintainer,
I am encountering a failure during the update process of certain Flatpak
applications: the update process is interrupted with an error regarding the
decompressed delta limit.

Steps to reproduce:
-  Run flatpak update when an update for a large application (e.g.,
org.mozilla.firefox) is available.
- Observe the process during the download/extraction phase.

Actual behavior:
The update fails for specific packages with the following error message:
"Error: While pulling app/org.mozilla.firefox/x86_64/stable from remote
flathub: Decompressed delta part exceeds configured limit of 76330069 bytes"

Expected behavior:
The update should complete successfully regardless of the delta size, or
the limit should be adjusted to accommodate modern application update sizes.

Logs/Output:

|$ flatpak update

|Looking for updates…
|
|        ID                           Branch          Op         Remote
     Download
| 1. [✓] org.gimp.GIMP                stable          u          flathub
      652,1 kB / 99,7 MB
| 2. [✗] org.mozilla.firefox          stable          u          flathub
      100,4 MB / 125,6 MB

Error: While pulling app/org.mozilla.firefox/x86_64/stable from remote
flathub: Decompressed delta part exceeds configured limit of 76330069 bytes

Thanks,
Antonio
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