I personally prefer Librewolf or Abrowser over IceCat, but if you can get IceCat to work then great.

You should be able to get extensions from the Mozilla Add-Ons Store. Failing that, the GNU Project has Mozzarella.

On Android, I would only recommend IronFox. It's available on GitLab, Accrescent, Obtainium, and F-Droid (third-party repo).

Anyone know of something similar for Android? I used to use Mull until it died, and now I'm back to Fennec. I very much prefer that it's available on fdroid, or at least direct download.

I just recently switched to LibreWolf from Firefox. It's one of the easiest software transitions I've ever made. It really is just Firefox without Mozilla's recent bad decision making.

I can't tell you much about the pros and cons for each, however, when I look at the number of active contributors for each project, I'm not thrilled by either of their staying power.

Icecat has only a few active contributors. LibreWolf has <20.

Just to compare, Waterfox has over 5000 contributors.

LibreWolf (and Waterfox) install extensions the way Firefox does, so it's very easy. Waterfox does give you the option to sync with Firefox, so that might be a major benefit if you want the functionality.

librewolf. icecat is great, but not all extensions and websites work properly

I think you would be hard-pressed to tell the difference between Firefox and Librewolf as you do all of your normal business with websites, but prove me wrong.

For IceCat, my main browser, you have to do a web search for the extensions you want and install the extension from their website, from Github, or from Firefox Addons. The IceCat FSF have a mentality of believing the only way to protect people's freedom, which never ever includes freedom of choice, is to have total tyrannical control and eliminate all options for users that don't conform to FSF philosophy because users aren't smart enough to know what not to install. So the IceCat people say the best way to protect people is cut off their ability to natively search Firefox Add-on website.

I'm curious to ask you, why do you use Distraction free YouTube instead of FreeTube? Do you need native YouTube functionality or do you post comments?