That's not right. Opera had tabs in version 4, released in early 2000. Some people apparently think tabs has to be drag-and-droppable, which Opera had in 2003,

That's not right. Opera had tabs in version 4, released in early 2000. Some people apparently think tabs has to be drag-and-droppable, which Opera had in 2003, in order to be called tabs: https://allthatiswrong.wordpress.com/2011/01/14/opera-did-not-invent-tabbed-browsing/ https://allthatiswrong.wordpress.com/2011/01/14/opera-did-no...