I have recently transitioned from various mouse gesture browser extensions to a desktop-based mouse gesture utility (Easystroke on Linux; the Windows equivalent would be StrokeIt - I think). The only thing I'm missing now is a gesture for "navigate to the parent directory" or "navigate one level up" or something like that. All commonly used mouse gesture extensions offer something like this, but to make it work with a desktop-based program, I need to emulate a key press.
Do Chrome/Chromium or Firefox have any keyboard shortcuts for that? If not... any idea how I could emulate that?