KeePassXC Extension cannot connect to db

[kevingimbel]

I have KeePassXC and Vivaldi on Fedora but for some reason the extension cannot connect to a DB.

• DB is unlocked and KeePassXC is running
• Browser integration is turned on and Vivaldi is allowed (as well as Chrome, Chromium, ... just for testing)
• The extension keeps logging that it can't establish a connection, and if I hit the "Connect" button nothing happens

I've the same setup on MacOS and it is working flawless.

Any helps or tips are appreciated!

I've found https://forum.vivaldi.net/topic/51643/keepassxc-browser-extension-cannot-connect-database but its not helpful.

[luetage]

@kevingimbel I have the same setup as you and keepassxc database connects and even auto‐fill works. Which extension are you using and what version? I assume you’re not using flatpak.

[kevingimbel]

I am using flatpak, is that an issue? I've used the Fedora App Store to install Vivaldi.

Versions are:

Vivaldi: 6.8.3381.46
KeePassXC: 2.7.9
KeePassXC-Browser Version: 1.9.1.1

OS

Fedora: Fedora Linux 40 (Workstation Edition) x86_64
Host: MacBookPro15,2 1.0
Kernel: 6.9.7-200.t2.fc40.x86_64 

[kevingimbel]

This is the error I see in the extension

[luetage]

@kevingimbel Yes, that should be it. Flatpaks are sandboxed, you have to edit the permissions to get it to work probably. Try Flatseal ☛ https://flathub.org/apps/com.github.tchx84.Flatseal

If you are on a normal desktop, I would suggest installing the regular rpm version. No point in running Vivaldi in a flatpak if not absolutely needed, you will run into issues. Moreover Vivaldi flatpak is still not officially supported.

[kevingimbel]

Thank you! I'll try and report back when I'm on my Fedora machine again.

[kevingimbel]

@luetage works! Thank you so much!

Flatpak and its sandboxing was the culprit. I removed both KeePassXC and Vivaldi and re-installed them without Flatpak and now the integration is working perfectly!