If you're an advanced user familiar with CSS, you can use Firefox's developer tools to preview your changes. You could paste every script in a single file named userChrome.js in the chrome folder, but that's not very manageable.Ĭopy the code from the style, then paste it at the bottom of the respective file, either userChrome.css or userContent.css. Simply save the *.uc.js files into the chrome folder.
A restart is required for the change to take effect, though the files won't affect anything until you add some styles or scripts.Īdding user scripts - obsolete in Firefox 72 Option 1.If you already have your own CSS files set up, only copy the code from the ZIP's userChrome.css into your own. If you extract it into your Firefox profile folder, it will create the chrome folder, and inside it, userContent.css and userChrome.css. This launches a file manager window with your Firefox profile folder. Enter about:support into Firefox's location bar.If it's not set to true, double-click it to change its value, then restart Firefox. Enter about:config into Firefox's location bar, then search for the preference.
