Support intro
Sorry to hear you’re facing problems. 
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Getting help
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- Official documentation (searchable and regularly updated)
- How to topics and FAQs
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The Basics
- Nextcloud Server version (e.g., 29.x.x):
Nextcloud Hub 10 (31.0.4)
- Operating system and version (e.g., Ubuntu 24.04):
Debian bookworn (stable)
- Web server and version (e.g, Apache 2.4.25):
1.22.1-9(official debian package)
- PHP version (e.g, 8.3):
PHP 8.2(official debian package)
- Is this the first time you’ve seen this error? (Yes / No):
no
- When did this problem seem to first start?
couple years / major versions ago
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Manual installation via back then provided owncloud tarball
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no
Summary of the issue you are facing:
Since several major versions I’m unable to edit text- and MD files within the webbrowser.
Instead, files are directly being downloaded.
I kinda shrugged it of, as there has been deprecations, incompatibilities and other changes with text-apps allowing for editing within the browser.
However now I installed the apps Nextcloud Office and Collabora Online - Built-in CODE Server - and face the same problem.
While the apps in general seem to work (setup and connection to the collabora server successful, I also can create new respective Office-documents (Diagram, Document, Presentation, Spreadsheet), I can’t edit them. They’re as well instantly being downloaded when clicked on.
That leads to me thinking it’s not a text-file/-app problem, but a more generic one.
I found tons of posts describing a similar issue, however setups and/or solutions did not fit my situation.
Please mind, the whole setup was initially set up around 10 years, with lot’s of migrations happened in between, initially leading to the current state of nextcloud on Debian/bookworm with standard packages (nginx, php, etc.) and Nextcloud 31.0.5 - at least for the last couple of years always updated via occ.
Steps to replicate it (hint: details matter!):
Clicking on whatever document which should open an app specific editor, such as plain text files or office documents.
I’m happy to provide whatever config / logs might be helpful, but don’t want to clutter right from the beginning.
I’m unable to tell if e.g. my nginx config might be responsible and would be worth pasted. Same for PHP config - or dir-/file-permissions.
Apps
The output of occ app:list (if possible).
mirko@cloud:~$ sudo -u php php /opt/nextcloud/occ app:list
[sudo] password for mirko:
Enabled:
- activity: 4.0.0
- admin_audit: 1.21.0
- app_api: 5.0.2
- appointments: 2.4.3
- bruteforcesettings: 4.0.0
- calendar: 5.2.2
- calendar_resource_management: 0.9.0
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contacts: 7.0.6
- contactsinteraction: 1.12.0
- dashboard: 7.11.0
- dav: 1.33.0
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.1
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- firstrunwizard: 4.0.0
- forms: 5.1.0
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- nextcloud_announcements: 3.0.0
- notes: 4.12.0
- notifications: 4.0.0
- oauth2: 1.19.1
- password_policy: 3.0.0
- photos: 4.0.0-dev.1
- polls: 7.4.2
- privacy: 3.0.0
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- richdocuments: 8.6.4
- richdocumentscode: 24.4.1303
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- support: 3.0.0
- survey_client: 3.0.0
- systemtags: 1.21.1
- text: 5.0.0
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- updatenotification: 1.21.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- workflowengine: 2.13.0
Disabled:
- deck: 1.14.3 (installed 1.14.3)
- encryption: 2.19.0
- files_external: 1.23.0
- impersonate: 1.17.1 (installed 1.17.1)
- suspicious_login: 9.0.1
- twofactor_nextcloud_notification: 5.0.0
- twofactor_totp: 13.0.0-dev.0
- user_ldap: 1.22.0