Droppie [infosec] 🐨
Late last year, after having used it as my daily default browser for a few [maybe several?] months, the incessant bugs, unrelenting workflow-buggering major changes, & frequent loss of all tabs, caused me to abandon 
[only in early Beta back then, so not totes surprising] & return to ticktacking back & forth twixt 
and 
. Into 2025 those latter two continued competing for my daily affections.
T'other day i learned that the long awaited native #TabFolders in have now landed in #ZenTwilight [the nightly / Alpha version], & thus might be expected to make it finally into the Beta version within a week or two. This morn, possibly against my better judgement but tbc, that discovery inspired me to jump back into my Beta & relearn it + learn all the stuff new since i last dabbled, in anticipation of this incipient major design UI & UX change.
All the #KleverKids are saying that Zen's TabFolders are a game-changer, coz they will provide users with the first ever native-in-a-Fox browser tab hierarchical nesting. None of , 
, nor has it [all only flat, not tree, structures; ditto flat-only in Chromium, Vivaldi, Edge et al]. Hitherto the only way to gain this important function has been via AddOns like #TreeStyleTab or #Sidebery. These are both fabulous, but do not have access to all the native foxy code bits n pieces [i've damn well forgotten the proper term atm, sigh], so by using either of these AOs we lose some of the important fox functionality, eg, tab context menu items. If the Zen Dev/s do their work really well, we will finally have our tabby cake & eat it.