Installing ProBlocker on Firefox takes under 30 seconds from Firefox Add-ons. No account is required.

Installation Steps

Go to the Firefox Add-ons listing
ProBlocker on Firefox Add-ons →
Click "Add to Firefox"
Confirm the permissions dialog
Firefox will list the permissions the extension requests. Click "Add" to confirm.
ProBlocker is installed
The ProBlocker icon appears in the Firefox toolbar. It begins blocking immediately.

Firefox vs Chrome: What's Different?

On Firefox, ProBlocker uses Firefox extension APIs for full network-level request blocking, so every blocking feature is available.

Unlike Chrome, Firefox keeps extension APIs that allow full network-level request blocking. ProBlocker on Firefox can use those full blocking capabilities.

Does ProBlocker Block YouTube Ads on Firefox?

Yes. ProBlocker blocks YouTube pre-roll ads, mid-roll ads, and overlay banners on Firefox, the same as on Chrome.