On Windows, I use Brave. On Linux, I use Librewolf unless I need Chromium, in which case, Brave again. On Android (GrapheneOS), I usually use Brave, though I occasionally use Vanadium and DuckDuckGo as well for certain use cases.
Fennec is quite outdated and suffer from vurnerabilities. The engine is not updated by Mozilla anymore. Switching to Fenix is recommended although it has its own vurnerabilities. Use Mull or vanilla Firefox which uses Fenix.
I had used Firefox for desktop and mobile for a long time but currently use Safari. Apple strong armed me when they allowed mobile safari to use extensions (needed for ruthless levels of ad blocking) and put desktop safari on the iPad. My iPad is my main ‘travel computer’ and having a desktop browser made huge difference. Yes Brave blocks ads but I just never liked their interface and their crypto/BAT shenanigans just rub me the wrong way.
From there it was just disjointed to use a different browser on my Mac so I switched completely to Safari. It has been fine.
Now if Apple allows non-webkit browsers into iOS as the rumors seem to suggest might happen, I will be very tempted to move back to Firefox. The web needs more not fewer browser competitors.
It also rubs me the wrong way, but Chromium just is a technically better browser. I’m running Qubes and running Firefox in appVMs with limited memory is just too painful, Brave just performs much better in the same environment.
Fennec was just what I was using when I was still on CalyxOS because that’s what was available on F-Droid. Since I’m on GrapheneOS now I stick to the recommended option by the developer which is Vanadium. If you want Firefox on mobile better stick to just vanilla so you can get regular updates.
That changed last year I believe with Total Cookie Protection. From what I understand, tabs are sandboxed, but the sandboxing is not as good as on Chromium.
Personal computer: Firefox with some hardening (no Arkenfox), with Brave as a backup
Work computer: Firefox with slightly more hardening than for personal (wipe browser history on close)
Phone: Brave, just because mobile site just seem to work better on Chromium and I give Firefox enough love on my desktops.
Chances are even with the userjs, firefox phones home.
I’ve turned all telemetry & tracking settings off, still firefox connects to a telemetry domain owned by mozilla. (incoming.telemetry.mozilla.org)
Brave is meh, to much. Good for privacy but bloated with rewards, etc.
Desktop - go for librewolf
Mobile - go for bromite
Vivaldi sucks, read the privacy agreement. Garbage.
And if your’re using waterfox or startpage, or duckduckgo, drop them.
Got acquired by system, read their terms of service & privacy agreement…
Bravesearch or searx for searchengine.
Please be careful with Bromite. Updates seem to not be very frequent recently, which leaves you open to potential security vulnerabilities. It used to be a great choice in the past but things have changed.