I downloaded, installed the Firefox browser. The browser works but I downloaded it the so I could use all the add on extensions available. The log in button won't load either on mobile or desktop mode on my phone (samsung note10). I wanted to use the Mp3 Downloader ext. specifically & ad blocker for both YouTube & browser. I logged in from a link from search page but it won't stayed logged in on new tab. And I'm back to same problem when I couldn't add extensions. It let's me download file but won't let me open or install extensions says can't open xpi. Files. And could you recommend best youtube mp3 Downloader extensions. Thank you. I've been trying for hours to figure it out. (Android version 68)

Hi

The version of Firefox for Android that you are using has not been supported for a couple of years. I recommend that you update to the latest version of Firefox for Android available from the Google Play store.