Yesterday, I've just update my Firefox to ver 20 but when I browse the news website I didn't find book icon on address bar that activate reader mode. please help me, how to enable it.
Go to Solution.
If your Android device has under 384MB of available free RAM, Reader Mode will not be available as it is under our optimal requirement.
I have Firefox on my Galaxy S4 with 700MB of free RAM and reader mode doesn't exist for me.