The excellent NoScript extension is well maintained and updated by developer, Giorgio Maone, who quickly answers questions on forums.informaction.com.

The addon does its job well but I have to say this in a user experience POV. Browsing with this addon is NOT FUN at all. The amount of potential identity leak popups you need to opt in just to load already supposedly trusted websites are staggering.

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Вже через дві години Я не уявляю життя без цього додатку.

Has a very intuitive UI so it is easier to learn than uBlock Origin's medium mode. However, it can only allow or deny all scripts based on the server domain and cannot filter individual scripts.

Freezes your page when using tor browser by sending you alerts that interrupt and freeze the crap tor browser. This is on by default. I think it misses DOS javascript hacker injections that wreak havoc on your connection and browser.

Totally broken since the last update, I switched from release to ESR because I couldn't find the issue why Firefox became unusable after a few hours getting slower and eating up resources like crazy. In ESR I still had the issue that refreshing a page resulted in a lot of pages displaying without CSS or JavaScript looking like they're comming from the 90s, after a few days.