AFAIK Firefox forks aren’t too different from Firefox feature-wise. It’s hard to make substantive changes to Firefox, so most forks like Librewolf or Waterfox slightly change default settings and extensions, but not sidebars and other cosmetics.

So unfortunately, there is probably no Firefox browser that would have Vivaldi’s features.

Maybe you could try uBlock Origin Lite? It’s Manifest v3 compliant, and I don’t remember having any issues with YouTube shorts using it. I use it on “optimal” filtering mode

It’s worse than average person. I don’t even see tech-savy friends use adblockers nowadays. No idea why, I never asked.

And I feel like majority of people don’t even know browser extensions exist, and those who do think it’s all shady and malware, so they avoid those like plague.

This is masks off moment for old.reddit. They have already done device fingerprinting, usage analytics, IP address retention, and cookies before, so not asking for email was rather symbolic, token privacy feature anyway. Removing it only confirms what’s already been there for years.

Use redlib, it’s nice. You can disable JavaScript and use it through Tor for complete security and anonymity, subscribe to subreddits, and it also has a lot of themes to customize your experience with.

And you can export your settings and subscriptions to import on another redlib instance anytime, so you are never locked in using only one instance forever.