Works great !

Small 'gotcha' I encountered : I turned off JavaScript on a certain web page (https://www.jstree.com/api/) to test something and forgot about it.

Next day, I couldn't figure why the site was not working. Looking at the errors in the console, I saw a bunch of "Content Security Policy: The page’s settings blocked the loading of a resource ..." errors, which confused me even more.

I finally suspected my Firefox Add-ons, looked at the list and remembered I used JavaScript Switcher the previous day ! All is well now. :-D

Note to developers : Turning off JavaScript with this add-on _doesn't_ show

The extension is very useful. where sites require javascript it can be switched on. Where java scripts cause problems, freezes etc, it can be switched off. I had a problem with the JS Switcher symbol not being visible in my browser address bar. I emailed the developer who responded alsmost instantly - he is very helpful indeed. Eventually I found two reasons why I couldn't see the icon. Firstly, it only appears on http/s web pages and not on the firefox new tab, add-ons, or options pages, for example. Secondly, in customising the toolbars, I had a "flexible space" to each side of the address bar, which reduced the size of the address bar and appeared to cut off the JS icon. Easy to fix by removing the flexible space via customise. With these issues sorted, and in light of the very helpful developer, I am happy to give 5*.

Works like a charm.

Pouvoir désactiver le javascript site par site avec mémorisation du choix, quelle riche, quelle confortable idée. THANKS !

I liked! Used for develop sites.

Really useful for stopping sites from popping up annoying adds, Lightweight add-on, also it's icon is not on the usual toolbar instead on the URL which has its special meaning for blocking specific web-sites.

Again, thanks for this. Excellent add-on... and compatible with the new Firefox 57+ technology!!!

Hi Suraj
Just to clarify one thing (since I can't reply to your original message), I believe I made one bit more complex than I implied.

So, it doesn't need to specifically detect if JS is enabled for each domain a page loads. It simply disables JS for each domain automatically. It just lists all domains being accessed on the current tab, and JS is disabled for them all. You can then select which domains from the drop-down you want to allow to use JS. At that stage, it refreshes the page (and the list, since some of the domains you've allowed access to may now be loading scripts pointing to more domains).

While NoScript goes beyond this and does things like intercepting individual scripts on specific pages, etc, simply being able to whitelist/blacklist multiple domains at once (especially since a lot of ad servers don't have 'pages' that you can actually visit) from within a site you're using is great basic functionality. Since the target audience is power users, being able to make the call on which domains to allow which the page is loading, allows us to tailor the functionality of the site, since most core functionality will come from just a few of the domains. For non experienced users, then a JS on-off script is going to be fine.

Good luck, and thanks for your hard work!