Websites can only enumerate plugins, not extensions. Sites detect some extensions (like ad blockers) based on the page of missing/added elements in the page.

Here's an example of a page that enumerates plugins:

• Standard: http://www.jeffersonscher.com/res/plugins.html
• Secure: https://www.jeffersonscher.com/res/plugins.html

You can use an add-on to empty out the plugins array, although this might cause unpredictable results on sites where you actually do want to use plugins. For example, I posted a Greasemonkey userscript here: https://greasyfork.org/en/scripts/18256-hide-all-plugins

I didn't create a UI to easily add/exempt sites, but someone could do that, or perhaps you'll find something easier to use.

jscher2000 said

Websites can only enumerate plugins, not extensions. Sites detect some extensions (like ad blockers) based on the page of missing/added elements in the page. Here's an example of a page that enumerates plugins:

• Standard: http://www.jeffersonscher.com/res/plugins.html
• Secure: https://www.jeffersonscher.com/res/plugins.html

You can use an add-on to empty out the plugins array, although this might cause unpredictable results on sites where you actually do want to use plugins. For example, I posted a Greasemonkey userscript here: https://greasyfork.org/en/scripts/18256-hide-all-plugins I didn't create a UI to easily add/exempt sites, but someone could do that, or perhaps you'll find something easier to use.

@jscher2000

Hey, may I ask you a question?

I want to hide the add-on or plugins tap by changing the defaut configuration of "about:config". So I creat a pref.js file but I don't know which item in "about:config" is the relevant configuration, and could you tell me how i can do that?

Thanks a lot.

Hi tdassj, I see you have a separate question about this: https://support.mozilla.org/questions/1147720

I actually don't think there is a preference for hiding the about:addons page (or any other internal pages). If I think of anything, I'll post it in the other thread.

jscher2000 said

Hi tdassj, I see you have a separate question about this: https://support.mozilla.org/questions/1147720 I actually don't think there is a preference for hiding the about:addons page (or any other internal pages). If I think of anything, I'll post it in the other thread.

Thanks a lot @jscher2000

waiting for your further support :)

@jscher2000

And do you have any other methods to customize the requirement ?