Toggle JavaScript Enabled can also be useful for you if you want to block the JavaScript codes from being loaded on any websites you’re visiting. And this totally saves my internet data a lot. So the video page of YouTube will only appear as a blank page.īut the good thing is, the “YouTube Downloader 4K Download” add-on can still work here so I can just download the video right away.

So everytime I want to download video on YouTube using Mozilla Firefox app, I can just activate this add-on and the YouTube video will not be loaded because all the JavaScript codes on YouTube website will be blocked entirely. Thankfully, there is an add-on called “Toggle JavaScript Enabled” which will block the JavaScript on any websites entirely, including YouTube. That is the AUTOPLAY feature on YouTube website.Īnd I don’t like this and even hate it because everytime this autoplay feature kicks in, the YouTube video will be played automatically, which really consumes my mobile internet data a lot, especially when I have fast 4G internet connection on my smartphone. However, everytime I want to download videos on YouTube using my smartphone, there’s something that is a bit annoying here.

All thanks to a Firefox add-on called “ YouTube Downloader 4K Download” which allows me to download YouTube video on many kinds of formats. In fact, it is one of my favorite things to do on my smartphone. I personally love downloading videos on YouTube using Mozilla Firefox app.

Javascript download for mozilla