I came across this thread on the steam forums that details an issue I am having where copy-paste from keepassxc does not work into the steam app (both native and web views).

Expected Behavior

Copy via cmd-b and cmd-c in keepassxc are able to be pasted into steam via cmd-v or right click context menu

Current Behavior

Paste does not function:

• password field at login prompt
• username and password field when adding paypal as a payment option

Possible Solution

Steps to Reproduce (for bugs)

1. Install Steam.app
2. Open a keepassxc database
3. Login to steam
4. copy password in keepassxc
5. attempt to paste into steam login window

Context

Debug Info

KeePassXC - Version 2.2.0
Revision: caa49a8

Libraries:

• Qt 5.9.0
• libgcrypt 1.7.7

Operating system: macOS Sierra (10.12)
CPU architecture: x86_64
Kernel: darwin 16.6.0

Enabled extensions:

• KeePassHTTP
• Auto-Type
• YubiKey