@dannyswift Chrome should automatically hibernate extensions if they're not in use, except for "persistent" background extensions. As for your request, you can set this behaviour yourself: Go to vivaldi://extensions Find an extension you want to limit to work on click only click "details" Scroll until you find the "Site access" choice: defd6452-08c5-4679-9c25-65150aeaa9cb-image.png Set it to "on click" Then, that extension will only activate when you click it's button.