For a while now the transition away from Manifest V2 (MV2) to MV3 has been on-going and it looks like it is entering its final phase of deprecation, at least, in the case of Google Chrome. A recent discussion thread in the w3c WebExtensions Community Group GitHub repo has highlighted how the latest and upcoming versions of the most popular browser are expected to be its final releases with support for MV2 extensions.
What this essentially means is that the tricks and bypasses that were used to keep MV2 extensions like uBlock Origin and others alive will not work any more on Chrome, or at least not for very long. For example the Windows Registry mod that could extend MV2 availability will cease to function after Chromium version 151.
I get it that tech people stumble upon these sites much more often than non-techies. My point was that if your parents are having website issues every other day (which implies they are not tech-savvy), then why would they even visit sites that are not FF-compatible. How many sites out of all the web do you think are not compatible with FF? Give an example of a normie site that wont work well with FF.
On the other hand, if your parents are tech-savvy then why would they ask you why a website wont load properly? Do you get it that your statement counters itself?
I have not been able to get proper payment processing to work with Portland area PGE in FF, ever. Across Windows, Linux, or Android (can’t speak for MacOS or iOS).