Great addon!

Unfortunately it intermittently stops working / selects the wrong links, when Google changes their DOM selectors. This then requires a patch release by the author.

W̶o̶u̶l̶d̶ ̶b̶e̶ ̶a̶w̶e̶s̶o̶m̶e̶,̶ ̶i̶f̶ ̶t̶h̶e̶ ̶a̶u̶t̶h̶o̶r̶ ̶c̶o̶u̶l̶d̶ ̶o̶p̶e̶n̶-̶s̶o̶u̶r̶c̶e̶ ̶t̶h̶i̶s̶ ̶a̶d̶d̶o̶n̶,̶ ̶t̶o̶ ̶s̶p̶e̶e̶d̶ ̶t̶h̶i̶s̶ ̶u̶p̶,̶ ̶a̶n̶d̶ ̶/̶ ̶o̶r̶ ̶a̶l̶l̶o̶w̶ ̶t̶h̶e̶ ̶u̶s̶e̶r̶ ̶t̶o̶ ̶c̶o̶n̶f̶i̶g̶u̶r̶e̶ ̶t̶h̶e̶ ̶s̶e̶l̶e̶c̶t̶o̶r̶ ̶i̶n̶ ̶t̶h̶e̶ ̶p̶r̶e̶f̶e̶r̶e̶n̶c̶e̶s̶.̶

Edit: The addon _is_ open source! I just had to do some googling. Maybe the GitHub repo could be added as a homepage here? :)
Updating to 5/5 stars!

https://github.com/jchafik/google-search-shortcuts