How to hide (not disable) one or multiple extension(s) in Add-ons Manager?
I have installed Play Music 1.6 on my computer. However, this extension shows up in the Add-ons Manager of my computer. I don't want anyone to be able to see the description nor disable this extension. My nephews use my computer frequently and I want to make sure they are not going to inappropriate websites.
All Replies (4)
Hello daisuki, i think this is not possible, see TonyE reply: https://support.mozilla.org/en-US/questions/812629
thank you
You can hide the extension in the Add-ons manager with code in userContent.css to make it more difficult to remove or disable the extension.
Open the extension's XPI (ZIP) archive and look in the install.rdf file to see the ID (<em:id>xxx</em:id>) of that extension, GUID between curly brackets {} or an email address if that is used as ID.
@-moz-document url(about:addons){
#addons-page richlistitem[value="GUID"] { display:none!important; }
}
An example to hide the PDF Viewer extension:
@-moz-document url(about:addons){
#addons-page richlistitem[value="uriloader@pdf.js"] { display:none!important; }
}
Add code to the userContent.css file.
The customization files userChrome.css (interface) and userContent.css (websites) are located in the chrome folder in the user profile folder.
yeesssssss..........with cor-el always learning, thank you cor-el.
Note that you still see the extension on the "Help > Troubleshooting Information" page and that starting in Safe mode will disable it like all other extensions (i.e. starting with Shift pressed is sufficient).