This extension is a different one from the 'Bypass Paywalls' one. Earlier, it was available in Firefox add on repos. Now it can be sideloaded. It is available for all major browsers.
Do not kill me, but I was paying for a magazine app, that only yesterday I realized was working flawlessly with this extension despite the site not being a very popular one.
Also, there is a browser based on Firefox, well it's engine Atleast, called 'Smart Cookie Web Preview' on Android that allows side loading of extensions. This allows you to use this extension on Android as well and basically bypass multiple Paywalls on the go.
Addons are loaded to memory, the more addons you use the slower it will behave. There is a security issue too, addons have a lot of permissons, you need to trust them, while filter lists are plain simple text. And last, there are browsers, which allow to add filterlists, but not addons.
On Android, you can add Ublock to the Firefox mobile browser (use the Mull fork and you even have about:config). This plus NoScript gives a seamless experience between my phone and my Linux desktop. Almost never hear or see ads thanks to this and LibreTube/Sponsorblock.
It does, it works better and covers more sites, but at the cost of security (increasing attack surface) and using more resources. Pros and cons to both.
Didn't know that, I actually switched to Kiwi Browser because I couldn't get the addon to work in IceRaven. And it's one of those addons I really couldn't live without.