I use an online weaving software (https://twistedthreads.org) and when deleting a row there's a popup that asks "do you want to delete?". I accideantally hit the checkbox that was along the lines of don't ask again and now even when clicking the button that would launch this pop up it won't come up (effectively meaning I can't use the delete button!) I've tried resetting cookies, and allowing the site to send me pop ups and it seems to have made no difference.