Event listeners and IIFE inline scripts are not aborted in Firefox

check related issue:
https://github.com/uBlockOrigin/uBlock-issues/issues/2350

* * *

**TLDR**:

seems like such scriptlet rules
```
port.hu##+js(aell)
port.hu##+js(acis, window.ado, ADBnrArea)
```

do not work for such case in Firefox on [port.hu](https://port.hu/tv)
```
const addEListener = window.addEventListener;
// IIFE:
(function () {
addEListener(...)
)();
```