Add these lines to .bashrc
# Open URLs in the Windows default browser from WSL
export BROWSER=wslview
Run this once (needs your password):
sudo apt-get update && sudo apt-get install -y wslu
Then reload your shell:
source ~/.bashrc
Verify:
wslview https://example.com
# should open in Windows Firefox
echo $BROWSER
# should print: wslview
How this fixes your AWS SSO flow
wslu provides wslview, which hands URLs to Windows' default browser via cmd.exe.
Setting BROWSER=wslview is what the AWS CLI (and most tools) check first when they want to open a URL.
xdg-open on Ubuntu/WSL also delegates to $BROWSER for http(s):// URLs, so your earlier xdg-open error will be gone too.
