About ten years ago I blocked something on the ebay search results page, and ever since the sort drop-down doesn't drop down. I think there are other issues, but that is the one which renders ebay useless. I have done my best to figure out how to undo this, and have given up. Along the way I uninstalled adblock, thinking that might help. Nope.
If anyone has ideas about how I can fix this I would be most grateful.