Firefox introduced enhanced tab management in version 64, just a few days ago. I don't know how they compare, though.
Only months after reaching the 2.0 milestone, the independent Chromium-based browser Vivaldi has added a bunch of useful features. Vivaldi 2.2, out today, adds tab session management and access keys. Tab sessions are new to Vivaldi but not the browser world – Edge (RIP, or not) uses them. It's a feature so blindingly obvious, …
I'm using qutebrowser myself, you may want to give it a try -although be warned that it might be a tad too bare for the average GUI user.
As for the feature frenzy, while some may be nice I can't help but wonder about the inclusion of a mail client when pretty much everyone else who tried it came to the conclusion that it was not a good idea -quite some years ago, too.
Can you properly stop auto-play videos from EVER starting with out an explicit user action?
You know the shitty sort of thing now embedded in HTML5 pages to push adverts or just pointless additions to news pages (which is annoying waste of bandwidth if you don't have sound on the machine or are not in a position to use it).
That would make it superior to Firefox that seems to be doing its best to piss of users by breaking useful add-ons, and dumbing things down to look like chrome.
I'm on the darker end of the Sceptical Curmudgeon Disorder Scale, but I have been impressed by Vivaldi. I came to it by being utterly sick of
Don't Be Evil¹, fed up with Firefox, and was hooked by (of all things) the fact that Vivaldi treats zoom scales on a per-page, not per-domain basis: in other words, I can zoom a specific page of (say) a Dynamics instance without every other page belonging to my domain also scaling to the same degree. A small thing, and an absolute blessing.
As I am fond of telling imbeciles¹: the devil is right there, in the detail, every single time.
¹ Cowboy IT "professionals"; senior management; cretin politicians; take your pick ...
Vivaldi remains almost unique in respecting the Do Not Track standard, which is on by default.
The Windows version I just installed certainly had the DNT box un-ticked. Much as I like Vivaldi, sync aside it seems to opt-in by default to most Google slurpage risks, such as search suggestions.
and just build an Opera 12 interface, customisation, tab handling, customisable ad blocking and everything that was great and original about Opera, onto a modern rendering engine ... I'd be happy. Stop wussing about with 'new features' and just get the old ones working fast and well.
Opera was my browser of choice from the version 6 (paid for version) onwards (which I think was the first "proper" feature rich release) until they ran out of track, hit the buffers and wiped out the station with the fork-up with version 12.x and 23 with "new features" that didn't include all the basic features that Opera users liked ... von Tetzchner can do it, I still have the faith.