Have you checked out Lightning?
Yeah, I know I go on and on about it.
Anyway, I think you would be pleasantly surprised.
Might even make a willing convert out of you.
Tell you what, just try it out.
Whatever you don't like, or have questions about, whatever- just ask.
I have used Lightning for years, and altjough I now use a modded downloader with a modded version of Lightning for a browser, I still always have a current version of Lightning installed.
There are multiple other versions, all legit becauae Lightning is completely open source, and they give even more options.
So, depending upon your needs, I bet there is a Lightning version out there that you will then compare all other browsers (mobile or PC) to.
https://f-droid.org/en/packages/acr.browser.lightning/
Start with that.
Let me know whatever you want to about what you want/need from it.
Not kidding, on my e6 I recebtly had over 100 open tabs in my browser.
Can Firefox do that, and not slow to a crawl?
Hahaha, the question is mute, because Firefox ALWAYS moves along at a crawl.
But seriously, just give it a whirl.
Once you get used to it, you won't go back and you won't keep looking.
The only thing I keep looking for is different versions of Lightning, so that I can check them out.
Just so you know, I have nothing to gain whatsoever from promoting Lightning.
All I can say is that it literally revolutionized my browsing experience on Android, and I am forever thankful to the developer (who has never responded to me in any way).
I know that when you first open it, it is disconcerting (at least for me) to see that Google is the preset homepage.
But the beauty of Lightning is in its simplicity and versatility, and in the ability to customize it.
So check it out as is, if you can tolerate Google.
Then try this...
In the app, go to
(three dot menu on top right)
Settings
General settings
Homepage
Webpage
(go to the end, then backspace until nothing remains)
Copy/paste the following into the homepage area, and then tap OK.
https://duckduckgo.com/?kae=t&kg=p&...=b&kv=-1&kak=-1&kax=-1&kaq=-1&kap=-1&kao=-1&k
In fact, you can just tap on that link above to see what it is going to look like.
That, and the DDG settings that are encoded, will become the new homepage.
This can also be used as the webpage for the search engine.
(If another app opens Lightning for a search, the settings of your homepage will still be in effect.)
Basically, this sets DuckDuckGo as your search engine, and embeds DDG settings so that you don't need to set them yourself (with each search if you clear cookies!)
Now completely close the browser, then reopen it.
Voila, welcome to a new world.
You now have access to unlimited tabs and bookmarks.
Go through and check all the settings, for the best security and your preferences.