Yesterday evening while reading a thread in Off-Topic called :
Is this “Facebook Container” FF extention any good?,
I got the following notification:
I clicked on ‘Stop script’ but afterwards the forum was unresponsive and broken - no previous content available (Back button).
The browser I used was Seamonkey, which is based on FF52.9 . I often (80%) use Seamonkey and this is the first time it happened on this forum. (I have Java scripts enabled and should maybe rethink that.)
I revisited this thread with FF65.0 and everything seemed to be fine.
Now I wonder:
(a) Is it a valid script that Seamonkey just cannot run?
(b) Is it a malicious script that Seamonkey caught but is rejected/ignored/run by more modern browsers?
© Should that script be there somewhere in that thread?