Mozilla is a bunch of scumbags. If you want detailed writeup: https://digdeeper.club/articles/mozilla.xhtml
Chromium is useless with zero usability features. Doesn't even have native feature to load tabs on demand. It's a browser for phones, not computers. Can't even get this useless piece of shit to connect to local web server through proxy, even with proxy.pac. If I have proxy.pac saying connect to localhost through proxy, that means I set it like this for a reason and the browser shouldn't be disobeying MY decisions. All extension buttons crammed into one corner, zero flexibility for UI customization, most Chromiums out there lock the profile to the machine it was created on, --disable-machine-id and --disable-encryption from Ungooogled Chromium are a rarity. Even with --disable-background-networking, it still opens persistent connection to mtalk.google.com at the very least (unless chrome.dll is edited and that string zeroed out).
And Firefox...constant changes to UI, the only project that made it bearable is dead, uses Skia and consequentially has awful font rendering like Chrome, zero respect for user's ClearType settings, which for some of us means eye fatigue and migraines. It treats user like an idiot. I don't have an option to open the EXE right away, I have to explicitly save it first. Really? Tab Mix Plus is of one of the few surviving extensions (forget the gimped Chromium WebExtensions...). DownThemAll!...dead, Norvell History...dead... And who knows for how long TMP will still survive.
I could go on, but it's not worth my time.
