This got me thinking since uBlock Origin can do a lot of blocking (basically replacing a lot of extensions) as to whether or not there are filter lists available.
~~https://raw.githubusercontent.com/suodrazah/murdoch_blocklist/master/murdoch_blocklist.txt - this one has 823 sites on it and I'm still looking for other lists but so far, this one looks the best - https://github.com/suodrazah/murdoch_blocklist for info~~
https://raw.githubusercontent.com/andyrb412/murdoch_blocklist/master/murdoch_blocklist.txt - @[email protected] has provided a more updated list. Please swap to this one if the extra sites matter to you.
Install https://ublockorigin.com/, go to Filter Lists in Settings, go to the bottom and Import. Add the link .txt above, then apply. All blocked. To remove, hit the little red bin icon next to the list in the Custom list area and then apply.
If you haven't looked lately, check out what uBlock Origin filter lists can do for you!