Only install extensions from the official Mozilla Add-ons site.
Proceed with extreme caution. Unlike the original Leethax, which was open-source, these new proprietary extensions often ask for broad permissions: "Access your data on all websites." leethax net firefox extension new
Sometimes, even after clicking "Allow," the installation window fails to appear. This is often due to Firefox's Enhanced Tracking Protection. You may need to temporarily disable this for the leethax.net domain to get the download prompt to show up. Only install extensions from the official Mozilla Add-ons