Facebook kept hammering away at its mobile business as it reported first quarter results that showed advertising on mobile devices now accounts for 59 per cent of its total ad revenue.

In its previous quarterly results (Q4, 2013) the company said mobile advertising grabbed more than half (53 per cent) of total spend. Now it is grabbing even more.

And mobile daily active users (DAUs) were 609 million on average in the first quarter of 2014, an increase of 43 per cent over the year-ago period.

So too mobile monthly active users (MAUs) were on the rise to 1.01 billion, an increase of 34 per cent over 2013.

CEO Mark Zuckerberg said the company was building “a great business” around its core app. But additional comments indicated investors will have to wait a while longer for Facebook’s other apps to start delivering in a similar style.

“Messenger and Instagram both reached 200 million monthly actives this quarter. We believe these apps have a lot of room to grow and will start to be important businesses in the future, but monetisation isn’t our near-term priority here,” he said.

The company’s revenue for the first quarter of 2014 totaled $2.50 billion, an increase of 72 per cent, compared with $1.46 billion in the first quarter of 2013.

The vast majority of revenue was from advertising, although the social network also receives a stream from payments and other fees.

Net income on a GAAP basis was $642 million, up from $219 million for the first quarter of 2013.

Finally, the company announced the departure of CFO David Ebersman, who has held the post for almost five years.

He is being replaced by David Wehner, Facebook’s vice-president for corporate finance and business planning and formerly CFO of Zynga, at the start of June. Ebersman will stay until September to help with the transition.