Update: On first impression that does not seem to have worked.
I also find it annoying that I lose access to my entire Firefox ecosystem on my computer and phone since the focus of the app is actually on anonymous browsing versus blocking ads. If I send tabs to my iPad they still open up in regular Firefox. Firefox Focus only slightly makes the web useable, while giving up most of the browser conveniences.
Can you give an example of a website that breaks with an adblocker? (Please describe what breaks as well. Otherwise I might not notice it.)
Now that I think about it, if a site wants people to disable adblocking, they should make valid contents disappear instead of begging for it with a popup.
Vangaurd's login page doesn't work with adblock (completely doesn't show it)
Don't have other examples off top of my head
For the ones you mentioned, Vanguard seems to have a lot of different login pages, but every one I found actually rendered - although some were white for so slow I wondered if they would fail. But not trying Uhaul because obviously I don't want to make a transaction.
