@eknobl Also, the native #TabGroups have been working well for several weeks in 
, & in my recent testing they also now seem to have become reliable in 
. The whole native #VerticalTabs UI ootb has ridiculous amounts of padding per tab, such that a stupidly small number of tabs can be open before invoking the scrollbar... i fixed this via some #CSS. The one remaining major design paradigm i dislike is that the tab groups are primitive like in Vivaldi & Chromium, ie, only single-level; no hierarchical trees are possible. Hence, even though the new VTs & TGs are aesthetically pleasing & quite usable, i still keep returning to Sidebery.
#FirefoxNightly + #Mv2 #uBO + #Sidebery + #FirefoxSecondSidebar = THE best browsing & sophisticated tab management UX i've ever had, easily eclipsing Vivaldi, 
#Floorp, 
#ZenBrowser, Waterfox, LibreWolf... ergo = 
#FirefoxNightly + #NativeVerticalTabs + #uBlockOrigin + #FirefoxSecondSidebar = Very usable already as of Feb 2025, albeit less powerful than Sidebery, ergo =
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