Seconding these choices. Of note in the second link, TTV LOL PRO is pretty great. It has worked when every other ad-blocking attempt is (temporarily) quashed. It requires manual updating, but considering you'll know when to update because ads are getting through, it's not a hassle.
https://github.com/younesaassila/ttv-lol-pro
Edit: Nevermind, there's an extension hosted through mozilla now, so it auto-updates. Get that instead.
https://addons.mozilla.org/en-US/firefox/addon/ttv-lol-pro/
Nah. I played before DPS/speed-clear meta and all the powercreep. When you actually fought the enemies, took damage, and didn't die to one-shots. I enjoyed that, and the game has always been downhill. After 1,400 hours of playtime, I realized I was only playing hoping for it to feel like it used to, but it never came.
That was a >100gb download that took the moderators time to download and test. And the admins weren't involved. All the claims of admins backing the torrent or deleting comments has had zero proof, as it was all hysteria drummed up by the psychotic cracker called Empress, who has had a long standing imaginary feud with 1337x.
1337x can have malware in anything, as anyone can upload. The volunteer moderators downloaded and tested it as soon as they could. I'm sorry some people downloaded it faster, but there's no conspiracy here.
If you assume they're from countries with weaker economies. Meanwhile, I live in the US, and I survive under the poverty line. Nothing about the US is 'region-locked', I'm just treated like shit for being disabled. It's a lack of income first and foremost.