Consider installing the KeePassXC browser integration in Tor Browser
The auto-type feature of KeePassXC got broken with Wayland in Tails 5.8 and is not realistic to fix: #19571 (closed).
KeePassXC provides browser extensions to automate the communication between KeePassXC and the browser:
https://keepassxc.org/docs/KeePassXC_GettingStarted.html#_install_the_browser_extension
They have an extension for Tor Browser but I couldn't get it to work in Tails:
I tried the extension for Firefox and it's pretty nice. It even integrated TOTP:
Using this requires some configuration on both KeePassXC and in the browser and setting up a connection. Unless there are security concerns, I think that we should preconfigure all this in Tails if possible:
https://keepassxc.org/docs/KeePassXC_GettingStarted.html#_configure_keepassxc_browser