Snapshot 1.0.321.3 - Tab closing improvements and extension fixes;
https://vivaldi.net/en-US/teamblog/6...xtension-fixes
"This is our first snapshot since the beta and we have fixed almost 50 bugs and made further improvements with tab behaviour. Two key fixes that we know some of you were waiting for are: backspace once again navigates in history and several more popular extensions are now working correctly" ..............