Are mining browsers legit?

Mining is effective only with high graphic power....
and don't even think about mining bitcoin that way...

If someone wants to calmly, profitably, steadily mine, then connect yourself to one of the favorable tariffs and you will no longer have problems with mining. here is the price list https://smart-mining.com/en/prices/?ref=165

I don't know what do you mean by legit, but yes they do mine for you.

Can not be trusted unless comes from a verified source.

I see that as a waste of time. They use your PC resources and what you gain is so small

man why dont u just get a job lmfao man it isnt that hard.

no is not legal, they use your pc components and make it trash