Is the Adguard extension for OS X limited to 50k filter rules? What about iOS?
The current stable version - no, it uses the old API, not content blocker.
The new one (which will go to beta testing stage on monday) - sure, it is limited.
What we do to overcome this:
1. Filters are compressed
2. By default OS X extension uses "optimized" filter lists (the same as iOS app uses). These "optimized" filters do not contain redundant (or rarely used) rules.
How do we do this? If you use Adguard browser extension, there's an option to
"Send ad filters stats" (off by default).
There're lots of users who turned it on so with their help we have smaller/optimized filters.
How do I know which lists to enable in Adguard? Are there lists that share the same rules which make them unnecessary?
Anyway duplicate rules are ignored.
Generally default lists are good enough. Also there're some special lists you may be interested.
Fanboy's Social Blocking List
Fanboy's Social Blocking List solely removes Social Media content on web pages such as the Facebook like button and other widgets.
This filter is like our Social filter, but it removes more. We normally remove only widgets (like, +1 buttons, group widgets and such), while this filter also removes links to social profiles.
Fanboy's Annoyance List
Fanboy's Annoyance List blocks Social Media content, in-page pop-ups and other annoyances; thereby substantially decreasing web page loading times and uncluttering them. Fanboy's Social Blocking List is already included, there is no need to subscribe to it if you have you already have Fanboy's Annoyance List.
It also removes EU cookies alerts and such.
Prebake
Blocks EU cookie law notices.
EasyPrivacy
Fanboy's Enhanced Tracking List
These two filters also block tracking and such. These are very good and comprehensive filters, but using them increases chance of incorrect blocking or breaking some pages load.