For your mobile needs, uBlock Origin also works great in Firefox for Android!
This is, honestly, one of the things that brought me back to Android. Content blockers on mobile Safari just didn't work as well for me.
I use Brave on iOS. I know it's forced to be just a webkit skin there, but it's better, at least.
Yeah. There's a glimmer of hope that Apple being forced to open the app store will allow us to use Firefox on iOS, too. Fingers crossed!
There are several ad blockers or content blockers (free and paid) on iOS with varying experiences (and sometimes annoyances due to the platform limit on the number of rules a blocker can include). Firefox Focus on iOS comes a built-in blocker. Additionally, using something like NextDNS – which allows adding the same filter lists as uBlock Origin – also helps. Of course, these will not allow easy element picking and blocking.
how good is it compared to the non-light version for only ad blocking?
It has a preset few lists in the extension, and you can only adjust a slider to determine blocking level, with the default just being DeclarativeWebRequest (non-blocking) ad domain blocking, and the higher tiers I suppose blocking dynamic content on the page like usual. No custom filters.
When it was announced I used it for a while and I seem to remember that the lack of cosmetic filtering was the only thing I really noticed.
Yes, use the User Agent that best represents your needs as an user.
(In other words, pester Google to revert the junk, or use a non-junk browser)
There is an experimental version for Chrome that does what it can, but many advertiser/tracker workarounds are not covered. One example is the CNAME trick: the website creates a CNAME subdomain and points it to the advertiser/tracker. I'm not sure what the current status of that is for Chrome (I use Firefox), but it certainly was effective against Manifest V3 blockers at some point.
As-per gorhill: uBlock works best on Firefox.
They haven't. When Chrome flips the switch it will not work well there.