Tab Groups on Mobile and Nested Tab Groups

[rajin00011-cmd]

Hi there! So, first of all, I want to say, we need tab grouping on mobile. Yep, kind of Chrome or Firefox has. The second request, I haven't seen it anywhere but my mind. Waterfox is my most favourite browser, so saying to you. :) Nested Tab Grouping. You open a group, but besides tabs, you also see some groups. Inside those groups, again tabs and groups... Cool, right? For example, I can create a primary group 'Anime', inside it, 'A Silent Voice' group, 'Demon Slayer' group, some other tabs...