Custom mouse gestures with "Gestures for Google Chrome" extension
For me lack of custom mouse gestures was the thing limiting from starting daily use of vivaldi. With bit of tinkering i got "[url=https://chrome.google.com/webstore/detail/gestures-for-google-chrom/jpkfjicglakibpenojifdiepckckakgk]Gestures for Google Chrome[/url]" extensions open new tab working properly (speed dial with focus on address bar) with vivaldi. Haven't tested all of the commands, but the essentials for me r now covered. To make that happend I needed to change chrome://newtab/ to chrome-extension://mpognobbkildjkofajifpdfhcoklimli/components/startpage/startpage.html in TabUtils.js. Tested with Vivaldi 184.108.40.206 (Developer Build) (64-bit).