Finally, Vivaldi browser has got lazy tab loading feature and is activated by default in version 1.5 snapshot. Current Vivaldi 1.5 snapshot, startup settings has a new ‘Lazy Load Restored Tabs’ option and is checked by default. Means, only active tab or the tab you’re facing from the last session will be loaded on startup and remaining background tabs won’t load until you select them. You’ll find this experience similar to Firefox’s tabs on demand, but not to Opera’s. Let me remind you recently, Opera 41 developer stream has got lazy tab loading.