Vivaldi stops working; Blank screen
So I recently got a new computer, and as a protest against the dominance of Google Chrome, I chose to download Vivaldi. I loved it; The personalization options were so amazing! You could also get extensions from the Chrome Webstore!
However, after a few days, while making custom themes, everything glitched, Vivaldi quit, and when I tried to open it again, a blank screen disappeared. cmd+q didn't work, nothing worked. As I am writing this using Opera, I want to know why this happened, and eventually how to fix it.
Open Vivaldi profile ~/Library/Application Support/Vivaldi/
In folder Default delete files "Current Session" and "Last Session"