Suggestion. Add support adblock.ini in root folder (as Opera/Iron) with direct block rules.
Like ".website.com" will block any.website.com and one.website.com/start.js
Does it really work in Iron?
Btw, use ublock which is much more powerfull than only adblock.ini can be...
There are some adblock extensions with built-in rule editor.
So the browser shouldn't do those works.
As well as gestures with the mouse. But built-in is 100% reliable, with just simple direct rules and faster working.
Why would you need that when there is Ublock lmao