It appears that a colon character in the password field can cause issues, because mumble get's confused if it is launched via the mumble:// link. If it isn't possible to somehow escape a character, then maybe colons should be disabled in the textbox.
Need to escape colons in passwords so it doesn't break the uri when launching from browser.
From an email:
Need to escape colons in passwords so it doesn't break the uri when launching from browser.