Vivaldi occasionally lockups when I bring up the context menu. I think it happens when it tries to makes a network request for the search icon.

Portion of the Vivaldi context menu, with the menu item 'Search Ecosia for freeze up' front and center, with the Ecosia menu item

I can remove the menu item if I wanted to, but I’d like to keep it around as I do find it useful. It would be nice to turn the icon off though.