AFAIR, Opera had this feature before (I think before they changed the engine), and it worked fairly well. I don't know though if they had similar issues.
"Founded by Opera Software co-founder and former CEO Jon Stephenson von Tetzchner and Tatsuki Tomita.. the browser is aimed at staunch technologists, heavy Internet users, and previous Opera web browser users disgruntled by Opera's transition from the Presto layout engine to the Blink layout engine, which removed many popular features in the process. Vivaldi aims to revive the old, popular features of Opera 12 and introduce new, more innovative ones"
