Chromium
FireFox
SeaMonkey

When I want speed, I go with Chromium,

When I want to take advantage of the various plugins available for FFox then FireFox

I also like SeaMonkey.

Pale Moon.
https://www.palemoon.org/
I prefer the interface vs. the 'new" Firefox and all the "old" plug-ins and extensions still work with Pale Moon. Version 27.6.2 of Pale Moon has worked perfectly with every web site I've visited, including banking.
For Netflix I do use Firefox-57.0.4.

Firefox. I've got 2-3 devices that use Firefox Sync, which is great because I've got a zillion tagged bookmarks. I suppose it's probably possible to migrate these to Chrom[e|ium], if that were necessary. It's one of my favorite features, always.

Firefox 57 broke one of my plugins [vimfx](rather, it broke the maintainer's will to continue), but it's the sort of thing which has half-a-dozen clones waiting to take it's place [vimium-ff].

Seamonkey mostly, Waterfox a bit.

Just downloaded Pale Moon as a result of this thread.

I like browsers and have tried many, even some odd ones like Epiphany and Aurora and lately (odd but rather nice) Vivaldi... and yes I've tried Chrome. Firefox is my mainstay even though I am both perplexed and a bit miffed that Mozilla chose to keep alsa support but disable it by default. I am pleased with 57 though which is both faster and less resource hungry than 52-56.

That's not a problem currently for my Main, Slackware 14.2 Multilib, but my DAW workspace, which was 14.0 32 bit stayed 14.0 until I learned I could compile Firefox from source with "./configure --enable-alsa". Now, it, too is 14.2 just still 32 bit and works a treat.

Dealing with my first faltering steps at compiling FireFox I was very glad Slackware still comes with SeaMonkey. It seems a great old Failsafe even if it bothers me immensely that the "close tab" button is right where Firfox's "open tab" button is located. C'mon Mozilla! A little forethought and consistency please.

1. Firefox
2. Qutebrowser

Firefox, occasionally Vivaldi.

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I used to use Seamonkey and quite liked it. I especially liked the integration.

I wouldn't use Chrome on a bet. I have this thing about running nekkid through the Googleplex.

Google makes the NSA look like amateurs. I know that Google knows everything there is to know about me, but, by heavens, I'm not going to help them.

Firefox where provided and links. In LFS, I'm moving over to Pale Moon because FF is becoming impossible to build with all the dependencies it's collected.

Depends on my machine - all of my computers have exactly one main browser, most of them have at least one additional browser which can do certain tasks better than others.

Browsers I primarily use:
Firefox, Vivaldi, Pale Moon, lynx.

Additional browsers I randomly use for certain things:
Otter (for taking side-by-side screenshots), eww, qutebrowser.

Pale Moon for the most part.

I used Opera for about 14 years on Windows but when I moved to Linux I found it just didn't perform that well, especially when it came to streaming media.

Now I use Chromium on my desktop and it's excellent. My netbook, being a little slower, uses Qupzilla.

mainly Firefox, sometimes like to play with qupzilla

I use Palemoon exclusively now that none of my extensions no longer work in Firefox.

I had used Firefox as my only browser since its debut so the transition was seamless, all my extensions work and I'm quite happy with it.