This is an example of a tab group using Sidebery. If you click links on a page that open in new tabs, it creates a sort of folder from the original tab, with the group of links as children of the parent tab. You can also drag them into these groups manually.

Yeah it’s a big contrast to continental Europe where if you go into any electronics shop they’ll have Kobos on display as prominent as Kindles.

I think it’s only Amazon that does lock screen ads but since they have two-thirds of the market share globally (and a near monopoly in the US where the Verge is based) then whatever they do in the e-reader space is “normal”