Outside textbooks or educational materials (I mean in a normal running texts for adult native speakers, in the business, academic and journalistic literature), the letter "ё" is seldom used by native speakers and it's written as letter "е", without the dots. It's still pronounced the same way as the form with ё. For example, лёгкий ‎(ljóhkij) is commonly written “легкий ‎(lehkij)”, although still pronounced as the former.

So you should pronounce "легкий" as if it were written as "лёгкий". Both spellings are correct. It's confusing but that's the way it is. I can suggest you to use my sentences when you are not sure about some word. I always try to use "ё" in my sentences. https://tatoeba.org/eng/sentences/of_user/odexed

You can also check the word on http://forvo.com/search if you are not sure about the pronunciation.

I always use ё, too. :)

+1 I do use ё in translations because I don't want people to think too much over sentences like "скоро страна передохнет от мороза". But I never use it when I make notes for myself.

Unlike my kind colleagues I don't always use ё and I can't promise I will. That's not because I'm insensitive to the problems of learners. I just want to write sentences the way I do it in real life focusing on more important aspects like naturalness and accuracy.

I think it would be more practical and useful for Russian language learners if our great programmers implemented editable alternate script feature for Russian that would allow us to provide versions of original sentences with all ё's and stress marks on every word.

Всем спасибо за реакции!