shadowwwind, 3 months ago @jon @Vivaldi does Vivaldi support the sidebar API like Firefox and opera? https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Sidebars
@jon @Vivaldi does Vivaldi support the sidebar API like Firefox and opera? https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Sidebars