Simultaneous Click To Close Tab wót t_w

if press right mouse button and left mouse button at same time, close current tab.

# When use this function, sometimes appearing context menu.
# I'm trying to solve this issue.
# having any idea, send to my email: tsujimoto.wataru+firefox@g.wakayama-u.jp

Buy me a coffee https://www.buymeacoffee.com/w.tsujimoto