

Yes, as it basically is just foreign, untrustworthy Code executed on your own PC.
But total blocking will make most of the web unusable.
I use a selective Script blocker extension (Noscript), that lets you instead choose which domains are allowed to use Javascript.
Works great after the initial try-and-error setup phase.
Depending on the age of the EEE, you might run into problems because the old low end CPU doesn’t support instruction set extensions that are assumed to be present by distros nowadays. I think it was SSE2…?