Why does @firefox have to keep profiles hidden in “about:profiles” like they’re illegal to have. It’s quite literally the 1 feature stopping me from using it over Vivaldi. That and vertical tabs, of course
Firefox has my very favourite vertical tab system of any browser in the Tree Style Tab addon: https://addons.mozilla.org/en-US/firefox/addon/tree-style-tab/
I’m not too sure how to simplify jumping between profiles though. I haven’t used it so I can’t vouch for it, but maybe the Profile Switcher addon would work for you? https://addons.mozilla.org/en-US/firefox/addon/profile-switcher/
I second the recommendation for Tree Style Tabs, however Sideberry did work better for me (don’t recall why, sorry).
One downside is that they don’t hide the horizontal tab bar on the top. AFAIK you can manually hide it by editing the userstyle css file.
