1 How to Block a Website on Firefox Desktop2 How to Block a Website on Firefox Mobile3 How to Change Default Search Engine and Clear Cookies/Cache
Before we start, though, there’s something important to note. At the time of writing, there’s no in-built way to effectively block websites in Firefox desktop. Instead, you’ll have to install a third-party extension and allow it access to your browsing data. If that makes you uncomfortable, we recommend you use a different browser on desktop and mobile, such as Opera. With that said, here’s how to block a website on Firefox desktop and mobile:
How to Block a Website on Firefox Desktop
How to Block a Website on Firefox Mobile
How to Change Default Search Engine and Clear Cookies/Cache
Now that you know how to block a website on Firefox, you may want to change some other aspects of your browser. While you’re here, feel free to view our guides on how to change default search engine and how to clear cookies, cache, and site data.
If you’re on iOS or iPad OS, you can use the built-in Screen Time tool instead. Just bear in mind that this will block sites on all browsers, not just Firefox. It will also apply to any device using your iCloud account, so be wary. Here’s how you can use it:
