The biggest difference between the two, in my experience, is UX. uMatrix is the best UX for a content blocker I've ever seen - very intuitive and simple.
uBlock Origin, check I'm advanced, block whatever you want per site, click save button
Safari user here. Which key and which click is that?
(That’s command comma. Which I described as one key, cheating slightly, but hey they are so close to each other.)
Preferences panel comes up.
If you leave it on the security tab, the checkbox comes up. Uncheck it and now the site is usable without JS.
Another click on background or Esc to dismiss the dialog if you want to, but for some things that’s not even needed (therefore I claimed that low click count... ymmv).
https://addons.mozilla.org/en-US/firefox/addon/disable-javas...
the problem has gotten so bad that i no longer use the plugin "store". i only install plugins that are open source, and only by building the source myself... meaning i miss out on automatic updates (but at least i know my plugin isn't spyware!).
it sucks.
New api functions are coming all the time as well. Its not yet as powerful as the old system but is there any reason to believe it will never be?
However I genuinely do want stuff that isn't yet implemented. For example I want add-ons to get access to Firefox's copy of the Public Suffix List, which is what you usually wanted when your add-on actually just treats TLDs as special. I just this evening sent a PR to PassFF, a popular password manager to do something crude as a stop gap while we wait to access the PSL via Web Extensions.