Strange behaviours in Firefox

ℹ️ Support
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1

The Basics

  • Nextcloud Server version (e.g., 29.x.x):
    • 30.0.4
  • Operating system and version (e.g., Ubuntu 24.04):
    • Ubuntu 22.04 LTS
  • Web server and version (e.g, Apache 2.4.25):
    • Apache 2.4.52
  • Reverse proxy and version _(e.g. nginx 1.27.2)
    • Nginx 1.18.0 Ubuntu
  • PHP version (e.g, 8.3):
    • 8.3.14
  • Is this the first time you’ve seen this error? (Yes / No):
    • no
  • When did this problem seem to first start?
    • A few months ago
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • NextCloud VM Script
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • Cloudflare, although I do not go through it locally

Summary of the issue you are facing:

Starting a few months ago, maybe about 5 or 6, my firefox installation has been having a strange issue with my NextCloud, that my Edge Browser does not have. Whenever I type the URL for the NextCloud, it hangs for like 10 to 20 seconds, and then the login prompt appears.

Firefox version: 133.0.3 Windows 64bit.

It’s not Cloudflare, as I have my local DNS pointing directly to the reverse proxy when I type my domain name instead of going to the Internet for improved performance. Plus, accessing it through another PC outside my home with a Chromium based browser is fine. Speedy.

Edge Browser does not have thing hang. It goes right away.

Also happens on my laptop with Linux/Firefox installed. Same Firefox Version (minus it’s the Linux Native one)

Is it a known issue with NextCloud and Firefox right now?

2

Hello,

I’ve also noticed issues with Firefox when using Nextcloud, although in a slightly different situation. In my case, it happens during screen sharing – Firefox behaves unexpectedly, and some functions, such as video transmission, get interrupted.

I’m using the Linux version of Firefox, so I haven’t had the chance to test this on Windows. Interestingly, when I use Brave for the same tasks, everything works flawlessly.

It seems that Firefox currently has some limitations when interacting with Nextcloud. If anyone has experienced a similar issue or knows of a solution, I’d be glad to hear about it.

3

Slight update:

Recently changed my reverse proxy server to Arch/Linux-Hardened with Nginx Version 1.26.2.

This did not fix the error with firefox, it did boost performance though.

4

Cannot confirm with ff v133.0.3 on macOS 15.2

Please check browser console to get details when loading login form.