Mouse down on tab, move one pixel without meaning to, mouse up 5ms later. Brave recognizes this as a click+drag even though the flash probably couldn’t do a click-drag operation this fast on purpose. Then the tab pops out into a new window and I want to throw my hard drive w/ Brave on it into a chipper shredder for the minute or so it takes me to calm down.
Thanks for reporting. This is a known issue. And an open issue for improve tear-off tab sensitivity is logged here:
I added your comment as +1 and you can track the progress in the link above.