Now, all you have to do is tap on the Aa button at the bottom-right corner, select Dark and Ta-Da!

This will immediately transfer your page’s looks and layout. All you have to do is open a website of your choice and tap on the Reader View icon at the address bar. It removes the color, style, and layout from the web pages for better readability.

Reading Mode is similar to Chrome’s Simplified view. To enable dark mode on Firefox, we will take help of the Reading Mode. Many times, add-ons just stop working either due to updates or in some cases, they throw a 404 error. You don’t have to depend on any third-party add-ons. This is one of the easiest and the simplest method. Luckily, there are a couple of ways to get dark mode for Firefox on Android. Meanwhile, Chrome or Firefox do not have a built-in setting. So can anybody help me to stop latest Firefox automatic installation and only leave the old one? Any solution would be very appreciated.Popular apps like YouTube, Snapseed, Pocket Casts or SMS Organizer allow you to switch on the dark mode.

So I checked installed applications and AGAIN found mysteriously installed latest Firefox with the old one. After a few days, again Youtube doesn't show videos, only sound plays, and you can see actual video frames by pointing cursor on video time line. So this time I again installed older Firefox (34.0.5) and made that it never look for updates and won't install them. So I uninstalled latest Firefox, but unfortunately it also uninstalled my older version Firefox. Unintentionally, I opened Revo Uninstall and saw that there's TWO Firefoxes installed - one is that I personally installed and another is newest Firefox 37.0.2. After a week I noticed that YouTube again shows black screen box. So I uninstalled Firefox and downloaded older, but stable version (34.0.5). I tried to install earlier version but that didn't change anything. So after a lot of research, many people claimed that this is flash player problem. I've noticed recently that Firefox stopped playing YouTube videos and showing only black screen where supposed to be a video.

Firefox add on youtube black